MS 00: General Submissions
Ronaldo I. Borja, Chair, EMI 2015
We welcome abstracts relevant to the EMI Conference. Topics of interest include, but not limited to, computational and applied mechanics, structural mechanics, computational geomechanics and geosciences, fluid mechanics, performance-based engineering, sensing and health monitoring, life cycle performance, and aging/deterioration/retrofitting. If you know your MS#, please direct your submission to that MS. Otherwise, please submit your abstract here and the Chair will help you find a suitable MS for your abstract.
MS 01: Dr. Helmut Krawinkler Memorial Symposium on Performance-Based Earthquake Engineering
Farzin Zareian*, University of California Irvine, USA
Dimitrios Lignos, McGill University, Canada
Christoph Adam, University of Innsbruck, Austria
Prof. Helmut Krawinkler dedicated more than a third of a century to teaching, research, and professional practice in the area of earthquake hazard mitigation. During his 34-year tenure at Stanford University, he made signiﬁcant and lasting contributions to the analytical and experimental research in Structural and Earthquake Engineering. This MS is organized to commemorate his successful career and accomplishment in the area of Performance-Based Earthquake Engineering (PBEE). PBEE is an engineering paradigm wherein structures are designed to meet specific performance measures of importance to stakeholders, in contrast to traditional design, which meets prescriptive code provisions. This MS is concerned with computational challenges in exercising PBEE in engineering of structures. The emphasis is on analytical modeling issues that have to be addressed in order to predict structural behavior in various loading regimes. Presentations will encompass several computational aspects of PBEE including structural modeling, soil-structure interaction, and reliability in structural response estimation.
MS 02: Dr. Masao Satake Memorial Symposium on Granular Mechanics
Ali Daouadji, Université Paul Verlaine-Metz, France
Matthew R. Kuhn*, University of Portland, USA
Takashi Matsushima, University of Tsukuba, Japan
Anthony D. Rosato, New Jersey Institute of Technology, USA
Hayley H. Shen, Clarkson University, USA
Antoinette Tordesillas, University of Melbourne, Australia
Dr. Masao Satake was a pioneer in granular mechanics, an organizer of the formative U.S.-Japan conference, and a significant contributor to discrete micromechanics. The concept of a granular fabric tensor can be attributed to his work, which was devoted to the mathematical foundation of structures of granular materials. As a fitting tribute to Dr. Satake’s legacy, the MS will gather current leaders in the study of granular materials, focusing on discrete and experimental micro-mechanics, granular modeling, and the micro-macro transition. The organizers plan 5 conference sessions with about 30 presentations (a sixth session would be welcomed). Special outreach is being made to the Japanese mechanics community as participants. Contributions are also being solicited for a special issue of the Journal of Engineering Mechanics, with manuscripts to be submitted two months prior to the conference. This MS is sponsored by the EMI Granular Mechanics Committee.
MS 11: Symposium on Molecular Scale Modeling and Experimentation
Dinesh Katti*, North Dakota State University, USA
Sinan Keten, Northwestern University, USA
Nima Rahbar, Worcester Polytechnic Institute, USA
Rouzbeh Shahsavari, Rice University, USA
Kalpana Katti, North Dakota State University, USA
Steven Cranford, Northeastern University, USA
The MS will seek papers on topics pertaining to fundamental and applied research in the field of molecular scale modeling and experimentation and their applications to engineering mechanics and materials characterization. Of particular interest are models and/or experimental techniques that enable atomistic control or assessment of mechanistic behavior, or are based on novel mechanistic response. Some of the topics include, but not limited to: (a) atomistic molecular dynamics simulations to evaluate the mechanical behavior of materials, (b) molecular simulations of transport phenomena including diffusion, electrical and thermal transport and coupled behavior, (c) ab-initio and DFT computations for potential field development, (d) techniques to bridge molecular scale responses to higher length and time scales, (e) hybrid modeling approaches, combining atomistic representations with non-atomistic elements, (f) spectroscopy techniques to evaluate molecular scale interactions and conformations, (g) single molecule force spectroscopy, including atomic force microscopy, lateral force spectroscopy, etc.
MS 12: Modeling and Characterization of Nanocomposites and Molecular Heterostructures
Steven Cranford*, Northeastern University, USA
Nima Rahbar, Worcester Polytechnic Institute, USA
The need for high performance materials has led the way to seamless integration of multiple material components and structures based on desirable properties. The development of nanocomposites and nanostructures opens the possibility for new materials with remarkable performance in comparison with the classical engineered materials, enabling the integration of both structure and material across multiple scales, due to synergistic interactions of the nanoscale components. These complex materials structures require multi-scale and/or multi-physics approaches to connect structure to properties and ultimately to function. The unique amalgamation of the discrete multiple length spectrum and its multi-physics principles creates an unprecedented way to study the mechanism of nanocomposites through the marriage of advancement of theoretical studies, exploitation of computational methods, and non-traditional experimental validation. In particular, we are interested in the underlying mechanical and functional roles of multi-phase materials. This MS welcomes contributions within this broad theme.
MS 13: Mechanics of Soft Materials and Structures
Christian Linder*, Stanford University, USA
Wei Cai, Stanford University, USA
The objective of this MS is to bring together researchers working on the development of microstructural based constitutive models for soft materials and structures. Examples are polymers, liquid crystal elastomers, gels, non-woven fabrics, or cellular foams as well as soft biological structures with a rod-, plate-, or shell-type geometry. Contributions presenting advanced computational techniques on single scales and bridging techniques across several length and time scales as well as recent experimental, theoretical, and manufacturing advances are welcome. We particularly invite contributions concerned with (but not limited to) phenomena due to large deformations, instabilities, damage, failure, self-healing, swelling, diffusion, and electro-chemo-mechanical coupling. Soft electroactive materials whose macroscopic properties are particularly designed by their microstructural architecture are of particular interest to the sustainability theme of the conference.
MS 21: 14th Symposium on Biological and Biologically Inspired Materials and Structures
Dinesh Katti*, North Dakota State University, USA
Christian Hellmich, Vienna University of Technology, Austria
The MS will bring together researchers working on various aspects of mechanics, micro and nanostructure, and synthesis and processing of materials and structures inspired by biology including but not limited to the following themes: (a) modeling and simulation of mechanical properties of biological materials, (b) materials design, synthesis and processing based on biological materials, (c) scale transition methods for bio-inspired or biological materials, (d) nano and micro scale characterization of interfaces in biological and bio- inspired materials, (e) experimental investigation of bio-inspired or biological materials, (f) poromechanical problems in bio-inspired or biological materials, (g) constructs for tissue engineering, and (h) biomechanics.
This MS is supported by three EMI committees: 1) Biomechanics, 2) Properties of Materials and 3) Poromechanics.
MS 22: Multiscale Mechanics of Bio-Inspired and Biological Materials
Nima Rahbar*, Worcester Polytechnic Institute, USA
Steven Cranford, Northeastern University, USA
Biological systems exhibit features ranging from nano to macroscale in a hierarchical fashion, which call for multi-scale modeling and experimental techniques that need to overcome long-standing challenges in accurately capturing the physical, chemical and structural complexities transcending length and time-scales. This MS attempts to provide a forum that brings together mechanicians, experimentalists and materials researchers who investigate the mechanical behavior of biological materials with the aim to understand the novel mechanics of biosystems and stipulate designs toward effective biomimicry and bioinspiration. The role of molecular and atomic scale behavior and interactions in the biosystems will be discussed in the context of mechanical response of the biological or bio-inspired materials. Experimental methods such as atomic force microscopy (AFM) and Bio-MEMS for characterization of biomechanical properties of cells, tissues, biomaterials and bio-inspired materials, microfluidic applications in medicine and biology and similar methods are of interest. Computational methods related to characterization and prediction of properties of these materials, in particular multi-scale methods are of great interest. Contributed papers and posters are solicited in the following areas: (a) multiscale modeling of biological nanocomposites, (b) novel characterization of mechanical response from nano to macro scale for biological materials through experiments, (c) molecular mechanics of proteins and protein-protein interactions, (d) time evolution of mechanical behavior of tissue engineered systems, and (e) molecular and genetic origins of mechanical behavior of biological systems.
MS 23: Mechanobiology of Soft and Hard Tissues
Claire Morin, École Nationale Supérieure des Mines de Saint-Étienne, France
Stefan Scheiner, Vienna University of Technology, Austria
Gregory Wohl, McMaster University, Canada
Biological tissues are usually divided into soft (unmineralized) tissues, such as cartilage or blood vessels, and hard (mineralized) tissues, such as bone. The development of their structure and composition is driven by cellular activities, which in turn are modulated through biochemical and biomechanical stimuli.
Considering that several of the underlying processes exhibit significant similarities between soft and hard tissues, the goal of this MS is the cross-fertilization of the usually separated scientific communities studying these processes either on soft or hard tissues. Contributions dealing with theoretical, computational, as well as experimental research on the mechanobiology of soft and hard tissues are welcome, including (but not limited to) the following topics, many of which involving or even originating from classical engineering mechanics approaches: (a) cellular sensing/transduction of mechanical loading; (b) soft and hard tissue remodeling, emphasizing on regulatory mechanisms, and related diseases; (c) tissue mineralization/calcification, and related diseases; and (d) multiscale modeling strategies.
MS 31: Advances and Applications of Elasticity within Applied Mechanics
Euclides Mesquita*, University of Campinas – UNICAMP, Brazil
Sonia Mogilevskaya, University of Minnesota, USA
John Brigham, University of Pittsburgh, USA
The Theory of Elasticity has become an important framework and a building block component in many developing fields of rational and applied mechanics. Fundamental concepts of elasticity are in the base formulations of many presently growing areas of fundamental and applied mechanics. Examples can be found in biomechanics, in non-linear wave propagation, in poroelasticiy, in the modeling of complex materials, in the development of Green’s functions for piezo-elastic and piezo-electric and magnetic media and also in the foundation of applied numerical methods. The aim of the present MS, organized by the ASCE EMI Elasticity Committee, is to report recent advances in the areas in which the concepts of the Theory of Elasticity play a major role. Applications in numerical methods, modeling of materials, wave propagation phenomena, among others, are within the scope of the MS.
MS 32: Stability of Plates and Shells
Yang Xiang*, University of Western Sydney, Australia
Jifeng Xu, Beijing Aeronautical Science & Technology Research Institute, China
M Ahmer Wadee, Imperial College London, UK
This MS, supported by the ASCE EMI Stability Committee, will provide a forum to discuss recent advances and address the future prospects in the area of stability of plates and shells. Following this MS, a special issue “Stability of Plates and Shells” in the Journal of Engineering Mechanics will be organized, and the full papers for the special issue will be primarily solicited from the presentations being given in this MS. Interested researchers are invited to submit abstracts on topics which include, but are not limited to: (a) stability of plates, (b) stability of shells, (c) buckling of composite members, (d) buckling of thin-walled structures, (e) interactive buckling and nonlocal mechanics for plates and shells, (f) buckling of micro/nano structures, (g) shear effects for in-plane and out-of-plane analyses (h) anisotropic effects, microstructured materials and stability problems, (i) buckling of sandwich structures, (j) stability of partially composite members and delamination effects, (k) post-buckling analysis, and (l) dynamic buckling.
MS 41: Computational Methods and Applications for Solid and Structural Mechanics
Caglar Oskay*, Vanderbilt University, USA
Haim Waisman, Columbia University, USA
Ertugrul Taciroglu, University of California Los Angeles, USA
Armando Duarte, University of Illinois at Urbana-Champaign, USA
Timothy Truster, The University of Tennessee, Knoxville, USA
The aim of this MS is to provide a forum for discussing the novel computational methods and applications that pertain to solid and structural mechanics problems. This MS seeks to bring together students, academicians, and professionals working on computational solid and structural mechanics. In particular, contributions on the following topics are of significant interest: (a) novel discretization techniques for modeling cracks and discontinuities (e.g., XFEM/GFEM, meshless methods, discrete elements, cohesive elements, peridynamics and others), (b) reliable computational damage mechanics formulations (e.g., nonlocal methods, gradient methods, other regularization techniques); (c) multiscale modeling and methods for heterogeneous materials including composites, concrete, wood, and others; (d) computational methods for modeling inelastic material behavior (creep, fatigue, plasticity, etc.); (e) multiscale modeling and methods for structural mechanics problems; (f) modeling of multiphysics phenomena (e.g., environment induced material degradation, coupling between mechanics and electromagnetic effects, mechanics and transport phenomena, coupling between mechanics and chemistry, and others). This MS is sponsored by the EMI Computational Mechanics Committee.
MS 42: Computational Geomechanics
Jose E. Andrade, Caltech, USA
Ronaldo I. Borja, Stanford University, USA
Majid Manzari, George Washington University, USA
Richard A. Regueiro*, University of Colorado, Boulder, USA
Joshua A. White, Lawrence Livermore National Laboratory, USA
The proposed MS will provide a forum for presentation and discussion of the state-of-the-art in computational geomechanics. Emphasis will be on novel formulations, computational methods, and numerical simulations involving geomaterials, such as soil and rock. Contributions are solicited in, but not restricted to, the following topic areas in computational geomechanics: (a) coupled, multiphysics problems (multi-phase flow coupled to solid skeleton deformation, chemo-thermo-hydro-mechanics, etc), (b) interface elements, cohesive surface elements, fracture modeling, (c) embedded discontinuity finite elements, (d) Extended Finite Element Method (X-FEM), (e) degradation, localization, instability and post-localization modeling, (f) multiscale modeling (including micromechanics, particulate mechanics, discrete element methods, molecular dynamics, hierarchical and concurrent schemes, etc.), (g) nonlocal and generalized continuum modeling, (h) constitutive modeling (small and finite deformations) for dry, partially-saturated, and saturated geomaterials, (i) dynamics of geomaterial, (j) probabilistic methods, (k) numerical modeling of fracture and fragmentation processes in geomaterials.
MS 44: Isogeometric Methods in Computational Mechanics
Dominik Schillinger*, University of Minnesota, USA
Victor M. Calo, King Abdullah University of Science and Technology, Saudi Arabia
Yuri Bazilevs, University of California, San Diego, USA
Isogeometric analysis (IGA) intends to bridge the gap between computer aided geometric design (CAD) and finite element analysis. Its core idea is to use the same smooth and higher-order basis functions, e.g., non-uniform rational B-splines or T-splines, for the representation of both the geometry in CAD and the approximation of solution fields in analysis. The initial motivation for IGA was to simplify the cost-intensive mesh generation process required for standard finite elements and to support a more tightly connected interaction between CAD and finite element tools. Since then IGA has developed into an innovative computational mechanics technology, offering a range of new perspectives and opportunities that go far beyond the geometric point of view of analysis. This MS brings together researchers to discuss and exchange new developments in IGA technologies and applications in the mechanics of solids, structures, fluids, coupled fluid-structure interaction, and beyond. Contributions to IGA addressing geometric aspects of analysis, novel discretizations, solvers, software implementation, and mathematical aspects are also of great interest.
MS 45: Optimization: New Methods of Sizing, Shape, Topology, and Parametric Optimization
Mazdak Tootkaboni*, University of Massachusetts Dartmouth, USA
John Brigham, University of Pittsburgh, USA
Mehdi Jalalpour, Cleveland State University, USA
James Guest, Johns Hopkins University, USA
This special session of the EMI 2015 Conference will bring together researchers to discuss the latest advancements in optimization algorithms as applied to optimal design of structures, material microarchitectures, devices and mechanisms. Design optimization, including sizing, shape, and topology optimization, is increasingly being applied to complex engineering problems in solid and fluid mechanics, heat transfer, electro-magnetics and many other challenging multi-physics problems. Contributions discussing general advancements in optimization methodologies, novel applications, incorporation of uncertainty as well as those addressing computational challenges in both the numerical representation of complex systems and optimization approaches to inverse solutions are invited.
MS 46: Recent Developments in Computational Methods for Real-Time Computing for Hybrid Simulation
Jeong-Hoon Song*, University of Colorado at Boulder, USA
Victor Saouma, University of Colorado at Boulder, USA
John Michopoulos, Naval Research Laboratory, USA
Athanasios Iliopoulos, Naval Research Laboratory, USA
Gary Haussmann, Formerly, University of Colorado at Boulder, USA
The main purpose of this MS is to recognize recent achievements in computational mechanics that can enable real-time computations for hybrid analysis of structures. Real-time hybrid simulation deals with a rapidly evolving technology combining computer simulation and physical laboratory testing of two complementary substructures. It is a cost effective alternative to full-scale testing, and allows for the improved understanding of complex coupled systems. In this simulation paradigm the coupled nature of the simulation allows for improved understanding and more efficient design, since the factor of safety does not have to be arbitrarily inflated to account for uncertainties of uncoupling. This MS is mainly open to contributions on new computational technology and theory that can enhance the current capability of real-time computing.
MS 47: Recent Advances in Real-Time Hybrid Simulation
Wei Song*, University of Alabama, USA
Richard Christenson, University of Connecticut, USA
Real-time hybrid simulation (RTHS) is a novel, powerful and cost-effective experimental technique for examining the global behavior of complex, large-scale structural systems under realistic dynamic loading conditions. This technique is developed by coupling both physical and simulated components, and applying advanced algorithms to interface these two components to provide real-time loading rate as the experiment progresses. Recent advances in RTHS are offering better understanding to the fundamental issues in RTHS, and enabling more efficient and cost-effective solutions to the investigation of global structural system behavior under realistic conditions. The goal of this MS is to provide a forum for RTHS researchers to exchange information, disseminate recent findings, and identify future key focus areas in RTHS. This MS invites papers related to the following aspects of RTHS: numerical integration, actuator control, noise treatment, assessment criteria, stability analysis, innovative RTHS framework, recent RTHS implementations and applications.
MS 51: Multiscale Behavior of Damage and Failure Mechanics
Lizhi Sun*, University of California Irvine, USA
J. Woody Ju, University of California Los Angeles, USA
George Voyiadjis, Louisiana State University, USA
Glaucio Paulino, University of Illinois, USA
Multiscale materials modeling and characterization has been recognized as one of the fundamental tools to study the local damage and failure behavior of heterogeneous structures at the microscale and overall constitutive relations. This MS provides a forum to discuss recent advances and address the future prospects in the area of multiscale modeling/characterization of damage and failure mechanics. Interested researchers are invited to submit one-page abstracts on topics which include, but are not limited to: (a) microstructural damage/failure characterization of heterogeneous materials; (b) micromechanical damage analysis of materials; (c) multiscale constitutive relations with damage parameters; (d) microstructure – property relations of advanced materials and composites; (e) nanomechanical characterization, analysis and modeling of damage and fracture mechanics; (f) experimental determination of damage and failure at multi-length scales; (g) probabilistic damage/failure mechanics and mechanisms; (h) experimental characterization and validation of damage and failure mechanics.
MS 52: Characterization and Modeling of Quasibrittle Fracture
Qiang Yu*, University of Pittsburgh, USA
Jia-Liang Le, University of Minnesota, USA
Sze Dai Pang, National University of Singapore, Singapore
Quasibrittle fracture has been observed in a wide variety of engineering materials, such as concrete, rock, wood, ceramics, polymer, fiber/particulate composites, semiconductor materials, etc. Many of these materials are used for design of key components in civil infrastructures and urban systems. Thus, understanding the initiation and evolution of quasibrittle fracture is of paramount importance for the pursuit of resilient and sustainable urban systems. This MS is intended to provide a forum for researchers to discuss the recent advances in characterization and modeling of quasibrittle fracture at different length and time scales. Research topics related to micromechanics-based softening damage, probabilistic modeling, nonlocal and gradient modeling, high strain-rate behavior, cyclic damage, and advanced multiscale and multiphysics computational modeling are welcome. Contributions on novel instrumentation techniques to experimentally characterize the quasibrittle fracture process and crack propagation are also strongly encouraged.
MS 53: Recent Advances in Fracture and Fatigue Mechanics, and their Application to Metallic Civil Structures
Amit Kanvinde*, University of California Davis, USA
Gregory Deierlein, Stanford University, USA
Traditional fracture mechanics approaches are limited in their ability to accurately simulate conditions in metallic (steel or aluminum) civil structures, such as under conditions of large scale yielding with low triaxial constraint. This often necessitates testing of large-scale components to ensure structural safety. Motivated by this, important advances have been made in developing new fracture/damage models, as well as computational frameworks for their practical application to civil/structural engineering. The MS will focus on these advances, inviting presentations in such areas as: (a) “local” or micromechanics-based fracture models, (b) modeling of ultra low cycle fatigue, which is observed during earthquakes, (c) multiscale modeling of fracture from meso- to structural-scale, considering the effect of material variability and heterogeneity, e.g. introduced by welding, and (4) probabilistic aspects of fatigue.
MS 54: Multiscale Modeling and Simulation of Fracture and Fragmentation Processes
Ahmed Elbanna*, University of Illinois at Urbana Champaign, USA
Glaucio Paulino, University of Illinois at Urbana Champaign, USA
Fracture is a fascinating, nonlinear and often dynamic, phenomenon occurring on many scales. In many systems, small-scale perturbations may lead to large scale system fragilities and catastrophic fractures. Understanding the underpinnings of material response at the microscale, including origins of friction and adhesion, and their implications for fracture at macro scale is thus of vital importance to many engineering, biological, and geophysical applications. This MS solicits contributions in all fields related to multiscale physics and computational modeling relevant to fracture and fragmentation processes. Possible topics may include, but are not limited to, (a) multiscale experimental investigations of friction and fracture toughness, (b) constitutive modeling appropriate for modeling friction and adhesion at the microscale, (c) thermodynamics based models for bulk damage, (d) theoretical analysis and experimental observations of crack nucleation and initiation and (e) computational modeling of cohesive fracture and failure.
MS 61: James Lai Symposium on Pavement Mechanics and Materials
Zhanping You*, Michigan Technological University, USA
Yong-Rak Kim, University of Nebraska-Lincoln, USA
Linbing Wang, Virginia Polytechnic Institute and State University, USA
The objective of this MS is to collect and disseminate state-of-the-art and new, emerging techniques and developments on pavement mechanics including characterization, modeling and simulation of pavements and pavement materials to honor Professor Lai’s long-term education and research contribution to the area of pavement mechanics and materials. Topics of interest include, but not limited to: (a) discrete and finite element modeling of the response of pavement materials; (b) performance models of flexible and rigid pavements; (c) modeling of vehicle-pavement interactions; (d) constitutive modeling and experimental characterization of pavement materials (asphalt binder, aggregates, asphalt mixes, cementitious materials and Portland cement concrete, unstabilized and stabilized bases, and subgrade soils); (e) numerical response analysis of pavements under static and dynamic wheel loading and climatic conditions; (f) experimental measurements and modeling of permanent deformation, fatigue cracking, low temperature cracking and moisture damage in pavement layers; (g) microstructure characterization and micromechanics of asphalt concrete and cementitious materials and Portland cement concrete; and (h) artificial intelligence techniques and application for forward and backcalculation analyses of pavements.
MS 62: Computational Modeling in Civil Engineering
Joel Conte, University of California San Diego, USA
Payman Khalili-Tehrani, SC Solutions Inc., USA
Glaucio Paulino, University of Illinois at Urbana-Champaign, USA
Ertugrul Taciroglu*, University of California Los Angeles, USA
Performance-based design and assessment approaches are slowly taking root in civil engineering, and are poised to replace the existing prescriptive methods. These advances have provided the impetus for the development, as well as more routine use, of high-fidelity computational simulation tools in all areas of civil engineering. Moreover, even in physical testing, high-fidelity simulations are increasingly being used to complement and enhance experiments, leading to novel hybrid testing protocols. In this MS, we aim to bring together researchers who develop or utilize advanced computational methods for analysis or design of civil structures (bridges, buildings, dams, tunnels, etc.). Areas of interest include, but are not limited to: (a) performance- or reliability-based methods of design or analysis; (b) methods for analysis of coupled problems in civil engineering, such as soil-structure, and fluid-structure interaction problems; (c) optimal design of structures; (d) development and application of algorithms or tools for massive computational simulation in civil engineering applications; (e) advanced methods for numerical simulation of various types of structures (wood, masonry, reinforced-concrete, steel, etc.) under extreme loads (seismic, impact, blast, wind); (f) reduced-order modeling in civil engineering applications (including the development of macro-elements); (g) development and validation of novel constitutive models for civil engineering materials; and (h) linear and nonlinear finite element model updating.
MS 63: Numerical Description of the Effect of Cracking on the Performance of Structural Systems
Ioannis Koutromanos*, Virginia Polytechnic Institute and State University, USA
Juan Murcia-Delso, Anatech Corp San Diego, USA
The proposed MS will provide the state-of-the-art on the use of computational methods for the description of the effects of cracking in system-level simulations to assess the durability and safety of the built environment. The goal is to provide researchers and practitioners in the field of structural engineering with an overview of the merits and weaknesses of the huge variety of methods that can be used for simulations of crack-induced damage. Contributions describing the calibration and use of lattice-based models, smeared cracking/microplane continuum approaches, element removal techniques, discrete crack models, embedded discontinuity approaches, extended finite element methods etc. belong in the scope of the MS. Ideally, the contributions must address the issues of calibration, validation, and computational efficiency of the described methodologies.
MS 64: Recent Advances in Rocking Isolation
Nicos Makris*, University of Central Florida, USA
Dimitrios Konstantinidis, McMaster University, Canada
The uplifting and rocking of slender, free-standing structures when subjected to ground shaking may limit appreciably the seismic moments and shears that develop at their base. While the superior seismic performance of rocking isolation has been documented with the through-the-centuries survival of several free-standing ancient temples, it was George Housner who a half century ago elucidated a size-frequency scale effect that explained the “counter intuitive” seismic stability of tall, slender rocking structures. Housner’s 1963 seminal paper marks the beginning of a series of systematic studies on the dynamic response and stability of rocking structures which gradually led to the development of rocking isolation—an attractive practical alternative for the seismic protection of tall, slender structures. This MS aims to attract recent contributions on the dynamic response of articulated/rocking structures in an effort to bring forward the major advances together with the unique advantages of rocking isolation.
MS 65: Advances in Seismic Isolation
Dimitrios Konstantinidis*, McMaster University, Canada
James M. Kelly, University of California Berkeley, USA
Seismic isolation is an established earthquake-resistant design approach that has been used in more than 6,000 buildings around the world. Unlike conventional earthquake resistant design approaches that aim at increasing
the capacity of the structure, seismic isolation aims at reducing the demand. This is achieved by decoupling the structure from the ground motion by placing horizontally flexible bearings between the building and its
foundation. In recent years, significant advances have been made in seismic isolation technology, modeling and applications, including elastomeric isolators with adaptive compounds, multi-surface sliding bearings, isolation of individual components and floors, mid-story isolation, isolation systems for nuclear industry applications, etc. This MS will focus on recent developments in seismic isolation, aimed at protecting both buildings and their nonstructural components.
George Deodatis*, Columbia University, USA
Simos Gerasimidis, Columbia University, USA
On the forefront of structural engineering mechanics problems today lays the problem of robustness or progressive collapse. The aging of infrastructures and the very high multilevel consequences associated with the phenomenon have raised progressive collapse as one of the most important structural engineering mechanics problems. Progressive collapse can be initiated by numerous sources including construction or design flaws, which surpass the common design base of current codes. Triggering events can be extreme events such as earthquakes, hurricanes, floods, abnormal loads not included in the design like gas explosions, vehicle impacts, fire or extreme environmental loads which push the structural system well beyond its strength envelope. In this framework, all infrastructure is vulnerable to progressive collapse at some level. This MS will bring together the structural engineering industry with academia aiming to provide insights on the actual engineering mechanics of progressive collapse.
MS 67: Optimization: Recent Applications of Structural Optimization
Alessandro Beghini*, Skidmore, Owings & Merrill, LLP, USA
William Baker, Skidmore, Owings & Merrill, LLP, USA
Structural Optimization is a relatively new, but rapidly expanding and extremely popular field of structural mechanics with applications in a variety of industries including mechanical, aerospace and, more recently, civil, architectural and biomedical. The interest in the subject has been driven by the substantial level of material savings combined with enhanced performance that can be obtained in a variety of design applications.
There have been several theoretical developments in the field and a large variety of numerical methods have been developed for application to practical problems in the industry. While numerical methods are more directly applicable, analytical solutions are extremely useful as reliable benchmarks to assess the validity, convergence and accuracy of numerical solutions. The objective of this MS is to provide the audience with an overview of the latest developments in the field and show possible applications of structural optimization to a variety of design problems.
MS 71: Cementitious Materials: Experiments and Modeling Across the Scales
Bernhard Pichler*, Vienna University of Technology, Austria
Christian Hellmich, Vienna University of Technology, Austria
Franz-Josef Ulm, Massachusetts Institute of Technology, USA
Gilles Pijaudier-Cabot, Université de Pau et des Pays de l’Adour, France
Günther Meschke, Ruhr University Bochum, Germany
The objective of this MS is to discuss recent advances in experimental oriented research and in modeling of cementitious materials across the scales, ranging from atomistic via molecular, nano, micro, and meso up to the macro scale, including also related applications in the field of engineering mechanics. Analytical and computational models for cementitious materials as well as related experimental techniques, addressing various length and time scales and physical phenomena relevant for the behavior of cementitious materials subjected to different environmental and loading conditions are welcome. Innovative approaches suitable to increase insight into complex phenomena as well as predictive models increasing safety, durability, and sustainability in practical applications are especially encouraged.
MS 72: Modeling Time-Dependent Behavior and Deterioration of Concrete
Roman Wendner*, IKI-BOKU Wien, Austria
Mohammed Alnaggar, Rensselaer Polytechnic Institute, USA
Giovanni Di Luzio, Politecnico di Milano, Italy
Gianluca Cusatis, Northwestern University, USA
In recent years topics such as robustness, resilience, sustainability, and life-cycle assessment have shifted into the focus of engineering societies. Many concepts have been developed. Yet, accurate and physically based prediction models and modeling concepts for the time-dependent behavior and deterioration of concrete, which are quintessential inputs, are still scarce. This MS will provide a forum for international experts and researchers to discuss recent developments in modeling time-dependent phenomena relevant to concrete structures. In particular, authors working on research related to creep and shrinkage, alkali-silica reaction, carbonization, freeze and thaw, corrosion, sulphate attack, and the age-dependent change of mechanical properties, are encouraged to submit abstracts. Further topics of interest include coupled problems such as cracking, damage, and permeability, as well as transport processes in ageing and deteriorating concrete structures.
MS 73: Formation, Ageing, and Failure of Cementitious Materials: Scale-Bridging Models and Insights from Glass Physics
Enrico Masoero*, Newcastle University, UK
Mathieu Bauchy, University of California Los Angeles, USA
Cementitious materials are pivotal to the durability and reliability of civil infrastructures, e.g. cement pastes for nuclear reactor pressure vessels and geopolymers for slope stabilization. The microstructural evolution of these materials involves coupled processes at multiple length-time scales, pushing the ASCE-EM community beyond scale-specific research toward linking models, theory, and experiments, across scales. The glass physics community faces the same challenge. Cementitious materials and glasses have similar rheological and mechanical behaviors (e.g. fracture and creep) that stem from structural heterogeneities and lack of long-range order. This directs modelers toward similar simulation techniques (e.g. finite elements, molecular dynamics, Monte-Carlo) and the same aim: to understand the relationship between composition, microstructure, and macroscopic properties. The objective of this MS is to gather experts in modeling cementitious materials and glassy systems across scales, from nano to macro, enabling a multidisciplinary discussion on what scale-bridging mechanisms control their processes of formation, ageing, and failure.
MS 81: Mechanics of Unsaturated Porous Media
Giuseppe Buscarnera*, Northwestern University, USA
Ning Lu, Colorado School of Mines, USA
The mechanical behavior of unsaturated porous media is invariably affected by physico-chemical interactions among solid and fluid constituents. Alterations of the environment modify the stress-strain-strength properties of these materials, impacting engineering problems such as the forecasting of natural hazards, the management of aging infrastructures, the confinement of hazardous waste, and the development of energy technologies. This MS focuses on the fundamental aspects concerning the mechanics of unsaturated porous media, with particular emphasis on unsaturated soils and rocks, as well as on the performance of geotechnical systems interacting with them. Contributions on theoretical studies, constitutive modeling, experimental and/or computational analyses are welcome. Particular attention will be given to work addressing the range of multi-physical couplings taking place in unsaturated porous media, including, but not limited to, the coupling between mechanical, hydrologic, thermal, and chemical processes.
MS 82: Mechanics of Unsaturated Porous Materials: From Geo-materials and Building Materials, to Food and Beyond
Ehsan Nikooee*, Utrecht University, Netherlands
S. Majid Hassanizadeh, Utrecht University, Netherlands
Modeling mechanical behavior of unsaturated porous media, such as swelling clays, concrete, and food, requires various coupled processes to be considered. These include hydro-mechanical, chemo-mechanical, and electro-hydro-mechanical processes. Moreover, mechanical behavior at high temperature depends on thermo-hydro-mechanical coupling, and in biological interaction with unsaturated porous media in self-healing concrete or biologically stabilized soils, bio-chemo-hydro-mechanical coupling is a major part of the poromechanical model. This MS provides a platform to discuss different aspects of unsaturated poromechanics including (but not limited to): (a) general topics in mechanics and hydraulics of unsaturated porous media: hysteresis phenomena, net stress effects on hydraulic properties, mechanics of rainfall induced landslides, mechanics of foods as deformable multiphase media, etc.; (b) coupled processes in multiphase porous media; (c) multi-scale approaches: from pore- and grain-scale simulations to macro-scale studies; (d) damage mechanics of unsaturated porous material; and (e) emerging poromechanics research topics: gas hydrates, CO2 sequestration, crystallization in multiphase porous materials, etc.
MS 83: Multiscale Digital Rock and Granular Physics
WaiChing Sun*, Columbia University, USA
Teng-fong Wong, The Chinese University of Hong Kong, Hong Kong
Mario Martinez, Sandia National Laboratories, USA
Xiaoyu Song, University of Florida, USA
The mechanical, hydraulic and thermal properties of unsaturated geomaterials are strongly influenced by the micro-mechanical liquid-gas-solid interactions occurring in the pore space. As a result, understanding how microstructural attributes evolve is the key step to characterizing macroscopic responses of geomaterials. This MS is aimed at providing a forum for both modelers and experimentalists to exchange ideas on digital rock physics – a technique that infers or estimates macroscopic material responses directly from pore structures inferred from digital images. In particular, we seek contributions on innovative usage of micro-CT imaging techniques for geomaterials, applications of 3D printing techniques to study single- and dual-porosity systems, and analytical and numerical techniques that predict fluid-induced micromechanical responses of porous media, and the multiscale homogenization techniques that connects microstructural attributes to field-scale simulations.
MS 84: Multiphysics of Rainfall-Induced Landslides and Debris Flows
Ning Lu*, Colorado School of Mines, USA
Giuseppe Buscarnera, Northwestern University, USA
Wei Wu, BOKU Wien, Austria
Rainfall-induced landslides and debris flows are phenomena taking place at a global scale. They involve coupled mechanical and hydrological processes occurring in natural or engineered slopes under variably saturated conditions. Current theories for geotechnical design are mostly based on saturated soil mechanics and do not account for multi-phase flow and the consequent stress field variation within slopes. This MS intends to highlight the latest developments on both hydrology and mechanics that would advance the state-of-the-art for slope stability analyses, ranging from landslide initiation and progression to landslide detection, analysis, and prevention.
MS 85: Advances in Computational Methods in Landslide Hazard Management
Seung-Rae Lee*, KAIST, Republic of Korea
Yun-Tae Kim, Pukyong National University, Republic of Korea
Seung Woo Lee, Gangneung-Wonju National University, Republic of Korea
Byung-Gon Chae, KIGAM, Republic of Korea
Considerable effort has been directed toward the development of more accurate and reliable quantitative methods for extreme rainfall-induced landslide hazard management in the last few decades. This MS aims to offer an opportunity for dissemination and discussion on the latest advances and issues in the computational approaches for landslide hazard framework including regional-scale early warning criteria, susceptibility map, debris-flow mobilization criteria, hazard map, risk map, and monitoring. Papers addressing this thematic are welcomed, which includes but is not limited to: (a) grid-based regional slope stability/debris flow analysis; (b) finite element or distinct element methods; (c) data mining and stochastic methods; (d) large deformation analysis using mesh free methods; and (e) dynamic models for debris flow, among others.
MS 86: Computational Methods for Faults, Fault Leakage, and Seismic Hazards
Eric Dunham, Stanford University, USA
Ting Lin, Marquette University, USA
Joshua White*, Lawrence Livermore National Laboratory, USA
This mini-symposium invites contributions on the state-of-the-art in modeling of faults, fault zone processes, and seismic hazards. Of particular interest are novel formulations and numerical methods for describing the impact of faults in both natural settings and within engineered systems. Relevant processes include dynamic rupture, quasi-static slip, seismic wave propagation, fluid flow within fault zones, induced seismicity, thermal and geochemical effects, and others. We seek contributions covering a broad range of applications, including seismic hazard assessment, geophysical monitoring of the subsurface, geologic carbon storage, geothermal systems, waste-fluid disposal, and hydrocarbon production. Submissions describing engineering aspects of ground motion are also welcome. The mini-symposium will provide a cross-cutting forum to describe both scientific and computational challenges to modeling faults and their impact on the natural and engineered environment.
MS 91: Multiscale and Multiphysics Computational Tools for Sustainable Hydraulic Fracturing
Congrui Jin, Northwestern University, USA
Marco Salviato, Northwestern University, USA
Gianluca Cusatis*, Northwestern University, USA
Zdenek P. Bazant, Northwestern University, USA
Gilles Pijaudier-Cabot, Université de Pau et des Pays de l’Adour, France
David Grégoire, Université de Pau et des Pays de l’Adour, France
Tight shale gas is emerging as a potentially key component of the worldwide energy landscape and is affecting US energy independence with reserves projected to last for many decades to come, and possibly centuries. In 2010 shale gas production accounted for 23% of the total US gas production and it is projected to reach 50% by 2035 even at the current extraction efficiency, which represents a huge opportunity for technological innovation that, leading to increased extraction efficiency, can generate substantial economic, environmental, and societal benefits. Such innovation, however, can only be created on the basis of a fundamental understanding of the failure and flow phenomena occurring in the shale formation at several length scales: from the fracturing behavior of intact shale to the stability of systems of pressurized cracks. This MS provides a platform to help researchers share knowledge and experience, fostering collaborations and partnerships between organizations and individuals working on hydraulic fracturing.
MS 92: Multiscale and Multiphysical Processes in Shales and Nanoporous Rocks
Younane Abousleiman, University of Oklahoma, USA
Ronaldo I. Borja*, Stanford University, USA
Hamdi Tchelepi, Stanford University, USA
Mark Zoback, Stanford University, USA
Shale is a fine-grained sedimentary rock consisting of a mixture of clay, quartz, feldspar, pyrite, carbonate, and other minerals and organics to form a heterogeneous and fissile nanocomposite. Shale is of current interest with respect to hydrocarbon production because it is both a source and seal rock. This MS will present the current state of knowledge about the thermo- hydro- chemo-mechanical processes in shales and other nanoporous rocks, spanning from nanometer scale to the field scale. Topics of interest include constitutive properties and modeling, creep and fracture processes, nanoscale imaging to delineate heterogeneity, homogenization of material properties, non-Darcy flow, and coupled multiphysical processes. We welcome contributions in innovative laboratory testing and state-of-the-art numerical/computational modeling.
MS 93: Computational Geomechanics for Subsurface Energy Extraction and Fluid Storage
Shunde Yin*, University of Wyoming, USA
Lyesse Laloui, École Polytechnique Fédérale de Lausanne, Switzerland
Patrick Selvadurai, McGill University, Canada
Drilling, injection and/or production are major activities in exploitation of subsurface energy resources and subsurface storage of fluids. Mechanical behavior of involved geomaterials (rock, shale, soil) and their fracture is the key to assessing the efficacy and environmental concerns associated with these activities. Understanding the mechanical behavior of geomaterials and their fracture requires knowledge of their interaction with heat transfer, fluid flow, and sometimes chemical and biological reactions. Computational geomechanics provides powerful tools to investigate geomaterials and their fracture behavior in these activities. This MS will discuss both fundamentals and applications of computational geomechanics involved in these activities. Abstracts on or related to these topics are all welcome.
MS 94: CO2 Geo-sequestration
Rafid Al-Khoury, Delft University of Technology, Netherlands
Mehdi Musivand Arzanfudi*, Delft University of Technology, Netherlands
CO2 geo-sequestration is an important technology for mitigating CO2 from being indefinitely emitted into the earth atmosphere. It involves injecting carbon dioxide, normally in a supercritical state, into carefully selected hydrocarbon or saline formations. Selection of such formations requires good understanding of the involved physical and hydromechanical processes occurring at the reservoir and the surrounding region. This entails having accurate and versatile computational models and simulators. Computational modeling and simulation of this technology constitutes the focal point of this MS. The objective of this MS will bring together researchers from various areas of theoretical, computational and experimental geoscience, to bring up critical discussions on the current state of the art in CO2 geo-sequestration technology. We encourage contributions on the following topics on CO2 geo-sequestration: (a) CO2 leakage through heterogeneous layers, (b) CO2 leakage through abandoned wells, (c) dissolution, (d) reactive transport, (e) optimization, (f) monitoring, and (g) environmental risk assessments.
MS 95: Modeling of Coupled Flow-Geomechanics-Geophysical Monitoring
Jihoon Kim*, Texas A&M University, USA
Evan Um, Lawrence Berkeley National Laboratory, USA
Coupled flow and geomechanics modeling becomes more important in reservoir engineering. Specially, unconventional resources such as shale gas reservoirs, gas hydrate deposits, and geothermal reservoirs as well as geological CO2 storage exhibit strong interaction between flow and geomechanics, requiring modeling of their strong coupling in pore volume and permeability. Development of such unconventional resources requires accurate prediction of reservoir behaviors and conditions 1) to prevent undesirable fracture propagation during hydraulic fracturing operations, 2) to keep the well assembly safe in gas production from oceanic gas hydrate deposits, 3) to prevent leakage of CO2 in the CO2 storage and so on. Thus, combined with flow-geomechanics modeling, seismic (e.g. microseismic and crosswell seismic) and non-seismic (e.g. electromagnetic images to fluid distributions) methods can serve as geophysical monitoring tools to injected fluid flow and induced fracturing. In this MS, we discuss multi-physical simulations of subsurface flow, geomechanics and monitoring geophysical techniques.
MS 96: Pore Morphology in Deforming Geomaterials: Observation, Characterization, and Modeling to Improve Performance of Critical Urban Systems
Antoinette Tordesillas*, The University of Melbourne, Australia
Adrian Russell, The University of New South Wales, Australia
Tae Sup Yun, Yonsei University, Republic of Korea
Guillermo Narsilio, The University of Melbourne, Australia
Mohammad Saadatfar, The Australian National University, Australia
Many urban systems interact with geomaterials whose microstructural features heavily influence fluid flow and storage as well as deformation under mechanical loading. The aim of this MS is to bring together engineers, physicists and applied mathematicians to discuss recent advances in experimental and theoretical analyses involving pore morphology. The symposium will have four main themes: (i) imaging and observation of the pore space and its evolution at various scales, (ii) partitioning the pore space to derive pore-scale descriptors, (iii) metrics for quantifying the pore structure from the perspective of flow, storage and mechanical properties, (iv) computational techniques linking pore morphology to a wide range of problems, for example CO2 sequestration, resources recovery (shale gas, oil, geothermal), infrastructure and interaction with the environments. Expected outcomes will include identification of ways to integrate cross-disciplinary research discoveries and techniques.
MS A1: Structural System Identification and Damage Detection
Eleni Chatzi*, ETH Zürich, Switzerland
Costas Papadimitriou, University of Thessaly, Greece
Siu-Kui Au, University of Liverpool, UK
This MS deals with structural identification methods and applications, as well as structural health monitoring algorithms for damage detection and reliability prognosis. It covers theoretical and computational issues, applications in structural dynamics, earthquake engineering, mechanical and aerospace engineering, as well as other related engineering disciplines. Topics relevant to the session include: theoretical and experimental modal identification, operational modal analysis, linear and nonlinear system identification, statistical system identification methods (maximum-likelihood, Bayesian inference) for parameter and state estimation, model updating/validation and correlation, uncertainty quantification in model selection and parameter estimation, stochastic simulation techniques for state estimation and model class selection, structural health monitoring and fault detection techniques, optimal strategies for experimental design, optimal sensor and actuator location methods, structural prognosis techniques, updating response and reliability predictions using data. Papers dealing with experimental investigation and verification of theories are especially welcomed.
MS A4: Benchmark Problem in Wireless Structural Control
Shirley Dyke*, Purdue University, USA
Lauren Linderman, University of Minnesota, USA
Chenyang Lu, Washington University in St. Louis, USA
Benchmark problems have been established in the structural control community as a means of comparing and contrasting control solutions through representative problems with common evaluation criteria. Wireless structural control systems are attractive due to their flexible installation, rapid deployment and reduced cost. A Wireless Structural Control Benchmark Problem is proposed to allow the research community, through simulation, to examine the use of wireless accelerometers to provide feedback to the active control system. This benchmark problem considers a 3-story building equipped with an AMD (Spencer et al. 1998). TOSSIM is integrated into the problem to incorporate the stochastic properties of transmission failures over different wireless links. This numerical testbed will enable researchers to realistically examine the influence of issues in wireless control such as network induced delay, data loss, available sensor measurements, measurement noise and control constraints.
The problem statement and associated files can be downloaded at the URL: https://nees.org/resources/12787
MS A5: Next-Generation Civil Infrastructure: Intelligence, Automation, and Data Analytics
Yang Wang*, Georgia Institute of Technology, USA
Jerome Lynch, University of Michigan, USA
Recent technological advances in sensing, computing and actuation are transforming the profession of civil engineering by coalescing into powerful cyber-physical systems that are dramatically enhancing the performance and resilience of infrastructure systems. Specifically, infrastructure systems are enjoying historical levels of dense sensing that are capable of providing massive amounts of empirical evidence of system performance and health. Similarly, actuation is allowing transportation, hydraulic, structure, and geotechnical systems to be automated. While advances have been made, major technological barriers still exist including scalable data management of infrastructure monitoring data, automated control and reconfiguration of infrastructure, cyber-security, and absence of effective data-to-decision support systems. This MS is intended to showcase recent advances in the domains of infrastructure sensing, infrastructure automation, and data analytics. The MS is of significant national and international interest and will attract academic researchers, professional engineers and infrastructure owners.
MS A6: Analytical and Experimental Investigations on Hazard Assessment and Mitigation of Critical Infrastructure
Suren Chen*, Colorado State University, USA
Asad Esmaeily, Kansas State University, USA
Yunping Xi, University of Colorado at Boulder, USA
This MS will have two or more sessions focusing on state of the art experimental, numerical and analytical studies on the impact of various hazards (man-made and natural) on critical civil infrastructure systems. Papers are solicited on topics covering advanced analytical, experimental, and numerical approaches to better assess these hazard risks, and further mitigate the hazardous impacts on civil infrastructures. The topics include, but are not limited to: new techniques of simulation, testing and system identification methods for assessing loads on and responses of structures including buildings, bridges, transportation system, and other infrastructure/lifeline elements; new testing methods related to tornadoes, hurricanes, thunderstorms/downbursts, earthquakes and other hazards; experimental approaches and simulation models to determine performance of sustainable building and transportation systems; wind energy related experiments and simulations including study of wind loading on renewable energy devices and wind turbines.
MS B1: Inverse Problems for Tomographic and Remote Imaging Applications in Engineering
Fabio Semperlotti, University of Notre Dame, USA
Habib Ammari, CNRS and École Polytechnique, France
During the last two decades, the interest of the scientific community in the development and implementation of tomographic technologies have undergone a drastic growth. Owing to its intrinsic potential and to the growing need for non-destructive techniques in many fields of science and engineering, tomographic technology has quickly spread to a variety of disciplines including, but not limited to, biomedics, geophysics, oceanography, structural health monitoring, and non-destructive evaluation of materials. The sudden extension of these technologies to the engineering community at large has not been followed yet by dedicated technical symposia and opportunities for interactions between different disciplines. Considering the already existing strong technical content in inverse problems, structural identification, and data processing, EMI would be an excellent venue to host a MS dedicated to cutting edge technologies and applications of tomography and remote imaging in engineering. This MS will provide an ideal environment for cross-pollination of ideas and exchange of theoretical/numerical/experimental methodologies for tomographic and inverse problems between the most diverse fields of engineering.
MS B2: Novel Stochastic Dynamics Methodologies and Signal Processing Techniques for Civil Engineering Applications
Ioannis Kougioumtzoglou*, Columbia University, USA
Antonina Pirrotta, University of Palermo, Italy
Pol Spanos, Rice University, USA
Mario Di Paola, University of Palermo, Italy
The objectives of this MS are to present recent advances and discuss current and emerging cross-disciplinary approaches in the broad fields of computational stochastic dynamics and signal processing with a focus on civil engineering applications. Specific topics related both to fundamental research and to civil engineering applications of signal processing and computational stochastic dynamics will be considered. A non-exhaustive list includes: joint time frequency analysis tools, spectral analysis/estimation subject to highly incomplete/sparse data, stochastic/fractional calculus, stochastic/fractional algebraic/differential equations, fractional derivatives system modeling and analysis, nonlinear stochastic dynamics, stochastic stability and control theory, spectral stochastic methods, multi-scale/physics stochastic modeling and analysis, stochastic model reduction techniques, stochastic inverse problems, Monte Carlo simulation methods, as well as uncertainty propagation/quantification and risk/reliability assessment applications.
MS C1: Mechanics of Sustainable Structural Materials
Craig Foster*, University of Illinois at Chicago, USA
David Easton, Rammed Earth Works, USA
Fabio Matta, University of South Carolina, USA
Esther Obonyo, University of Florida, USA
Ece Erdogomus, Univerisity of Nebraska – Lincoln, USA
While concrete and steel are the most common structural materials in the industrialized world, engineers and architects are starting to reexamine more sustainable materials, including earth and biomass. Carbon emissions, thermal properties, and other environmental issues may motivate some, but economy and local availability may be as important, especially in the developing world. In fact, it is estimated that one in three people worldwide live in an earthen building. While such sustainable materials have been in use for millennia, we are still learning about and improving the physical, mechanical, aesthetic, and structural properties from a modern engineering perspective. This MS focuses on developments in sustainable structural materials, including, but not limited to, earth and biomass. Contributions on material and structural unit development, property characterization, and structural analysis and design are all appropriate, and experimental, analytical, and numerical studies are all considered of interest.
MS C3: Advances in Quantitative Engineering Sustainability
Arghavan Louhghalam*, Massachusetts Institute of Technology, USA
Marta Gonzalez, Massachusetts Institute of Technology, USA
Roger Ghanem, University of Southern California, USA
This MS of EMI 2015 will draw together researchers in the field of quantitative engineering sustainability to discuss state-of-the-art techniques and models developed for assessing the sustainability performance of engineering infrastructures. Development of quantitative frameworks for sustainable design and maintenance processes requires modeling of infrastructures as complex systems. Latest contributions on developing mechanics-based models for assessing the energy efficiency of buildings and pavement systems, modeling of cities and transportation networks, incorporation of uncertainty in parameters affecting environmental footprint of engineering structures, application of big data analytics in building predictive models as well as application of novel sustainable design tools in maintenance and design practices are invited.
MS C4: Environmental Effects on the Mechanical Behavior of Materials (Couplings)
Matthieu Vandamme*, Ecole des Ponts ParisTech, Laboratoire Navier, France
Jean-Michel Pereira, Ecole des Ponts ParisTech, Laboratoire Navier, France
Patrick Dangla, IFSTTAR, Laboratoire Navier, France
The mechanical behavior of materials relevant to civil engineering and geotechnical applications is sensitive to a variety of environmental factors, such as temperature, hydric state, or chemistry. For porous solids in particular, such sensitivity (often referred to as “couplings”) stems from in-pore physical processes, such as freezing, drying, crystallization, adsorption, etc. This is, for instance, the case with soils, clay-based materials, or cement-based materials. This MS aims at gathering both scientists and practitioners working on or dealing with thermo-, hydro-, or chemo-mechanical couplings. Any applied or fundamental topic related to couplings is in the scope of the MS; in particular: modeling of couplings, their experimental characterization, or numerical solving of coupled systems.
MS C5: Fluid-Vegetation Interactions
Qin Jim Chen*, Louisiana State University, USA
Jane Smith, US Army Corps of Engineers Engineering Research and Development Center, USA
Climate change and sea level rise pose a major threat to coastal habitats and communities worldwide. The impact of sea level rise has resulted in increased coastal erosion and flooding. For instance, the chronic wetland loss in South Louisiana has considerably weakened the natural defense against catastrophic floods. It has been recognized that vegetation in wetlands can effectively reduce the flow speed, modify turbulence structure, attenuate wave energy, and affect sediment dynamics. Restoring coastal wetlands and reducing flood risks require improved understanding and better predictive capability for wave and surge attenuation over inundated coastal landscapes with vegetation. The objective of this MS is to bring together the entire spectrum of research and development in the area of fluid-vegetation interaction. This includes laboratory and field experimentalists using both artificial and real vegetation and numerical modelers working all levels of fidelity and resolution (from numerical wave flumes to depth- and time-averaged shallow-water equations or phase-averaged wave equations). The MS will provide researchers, modelers, and practitioners with a better understanding of the existing data sets, data analysis methods, vegetation characterizations, dissipation parameterizations, modeling techniques, and model validation available for fluid-vegetation interactions. The MS will also highlight areas of future development and collaboration.