The aim of this mini-symposium is to summarize the progress in theoretical, computational and experimental research in the field of structural analysis of steel and steel-concrete composite structures. Special emphasis is always given to new concepts and procedures concerning the computational modelling, structural analysis and design of steel and steel-concrete composite structures. Topics of interest include static and dynamic analysis, fatigue analysis, seismic analysis, vibration control, stability design, connections, cold-formed members, bridges and footbridges, fire engineering, trusses, tower and masts, linear and nonlinear structural dynamics and soil-structure interaction. Papers of all research areas related to theoretical, numerical and experimental aspects concerning the computational modelling, analysis and design of steel and steel-concrete composite structures are very welcome.
Euclides Mesquita – University of Campinas – Brazil (ASCE EMI Elasticity Committee Member) – firstname.lastname@example.org
John C Brigham – Durham University (ASCE EMI Elasticity Committee Chair) – email@example.com
Sonia Mogilevskaya – University of Minnesota (ASCE EMI Elasticity Committee Member) – firstname.lastname@example.org
Ney Augusto Dumont – Pontifical Catholic University of Rio de Janeiro (ASCE EMI Elasticity Committee Member), Brazil – email@example.com
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 Modelling 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 Mini Symposium, 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, Modelling of Materials, Wave propagation phenomena, among others, are within the scope of the Symposium.
Michéle Dal Toé Casagrande – Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil – michele_casagrande
The objective of this MS is to collect and disseminate the emerging techniques and new developments on geotechnical materials, including experimental analysis and also research contribution to geotechnical and pavement engineering applications. Topics of interest include, but are not limited to, the materials response under static and dynamic loadings, new geotechnical materials research works for soil stabilization and reinforcement, to be used in landfills, embankments or pavement base and subgrade, for example, as well as flexible and rigid pavement materials.
The purpose of this mini-symposium is to have experts discuss their most recent theoretical achievements and engineering-oriented applications in the field of Boundary Element Methods and Meshless Techniques. In this respect, contributions focusing on formulations involving the coupling of boundary-integral-based methods with other numerical methods such as the Finite Element Method are also welcome.
Prof. Alex Cheng, University of Mississipi (From Green’s Function to BEM, Mesh Reduction, and Meshless Methods – a Historical Perspective)
Flávio de Andrade Silva – Pontifical Catholic University of Rio de Janeiro (PUC-Rio) – firstname.lastname@example.org
Daniel Carlos Taissum Cardoso – Pontifical Catholic University of Rio de Janeiro (PUC-Rio) – email@example.com
Lourdes Maria Silva de Souza – Pontifical Catholic University of Rio de Janeiro (PUC-Rio) – firstname.lastname@example.org
Contributions to the mini-symposium on composite materials and structures are expected to cover the latest findings and research related to cementitous and polymeric composites. They may deal with but are not limited to the following topics:
- Mechanical properties and test methods
- Material design and manufacturing
- Structural design and performance
- Durability characterization and design
- Practical applications
Dr. Mark Gurvich, United Technologies Research Center, USA (Efficient Approach of Geometrically Nonlinear Analysis of Composite Materials for Engineering Applications)
Dr. Daniel Cardoso, PUC-Rio, Brazil (On the Stability of Pultruded Glass-Fiber Reinforced Polymer Columns and Beams)
The symposium aims to provide a forum for state of art research in computational and applied mechanics, covering analytical, hybrid, and numerical methods, as well as applications in theoretical and engineering problems.
Prof. Paulo A. B. de Sampaio, Nuclear Engineering Institute, Brazilian National Nuclear Energy Commission (Implicit Subgrid Modelling in Finite Element Large Eddy Simulations)
The objective of this mini-symposium is to provide a forum for presentation and discussion of research’s results in computational geomechanics. Authors are invited to submit original contributions in the field of soil and rock mechanics. Emphasis will be on novel computational methods, formulation and practical applications.
In this minisymposium we are interested in recent research regarding computational modeling related to problems of interest to the engineering mechanics community. Researchers are encouraged to submit abstracts in the following (or related) topics:
- Active materials and structures
- Multiphysics coupling
- Homogenization and concurrent multiscale methods
- Topology optimization
- Fluid-structure interaction
- Electro- and magneto-mechanics
- Flow in porous media
- Diffusion and mass transport
- Hydraulically and/or thermally induced fracturing
- Failure and instabilities
- Deployable structural systems
Prof. Oscar Lopez-Pamies, University of Illinois (A WENO finite-difference scheme for a new class of Hamilton-Jacobi equations in nonlinear solid mechanics)
Prof. Arash Yavari, Georgia Institute of Technology (Nonlinear mechanics of surface growth for cylindrical and spherical elastic bodies)
Prof. Sinan Keten, Northwestern University (Understanding nanoconfinement and nanoscale interfaces in polymer nanocomposites)
This mini-symposium will focus on the application of analytical and computational approaches for the study of contact problems encountered in material science, biomechanics, earthquake contact mechanics, tactile sensors in robotics, geomechanics and allied fields, including experimental investigations of material and interface characterization. Contributions covering these and other topics are welcome.
10 - EXPERIMENTAL ANALYSIS AND COMPUTATIONAL MODELING OF CONCRETE TIME-DEPENDENT BEHAVIOR AND DETERIORATION
Giovanni Di Luzio – Politecnico di Milano, Piazza Leonardo Da Vinci, 32, 20133 Milano, Italy – diluzio
Gianluca Cusatis – Northwestern University, 2145 Sheridan Road 82, 60201 Evanston, IL, USA – email@example.com
Roman Wendner – University of Natural Resources and Life Sciences, Peter-Jordanstr 82, 1190 Vienna, Austria – roman.wendner
Mohammed Alnaggar – Rensselaer Polytechnic Institute, 110 8th St, Troy, NY 12180, USA – alnagm2
In recent years, topics such as robustness, resilience, sustainability, 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 Mini‑Symposium 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 modelling creep and shrinkage, alkali-silica reaction, delayed ettringite formation, 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.
Prof. Eric Landis, University of Maine (Detection of aging through integration of microstructural measurements and computational modeling)
Prof. Giovanni Di Luzio, Politecnico di Milano (Full coupling between diffusion and mechanical analysis in concrete)
Ney Roitman – Federal University of Rio de Janeiro (COPPE/UFRJ), Brazil – firstname.lastname@example.org
Carlos Magluta – Federal University of Rio de Janeiro (COPPE/UFRJ), Brazil – email@example.com
Marcílio Freitas – Federal University of Ouro Preto (EM/UFOP), Brazil – firstname.lastname@example.org
Luis V. Sagrilo – Federal University of Rio de Janeiro (COPPE/UFRJ), Brazil – email@example.com
This mini-symposium deals with techniques to be applied in Civil, Offshore and Mechanical Structures. These techniques aim at:
(i) Identifying dynamical response of structures
(ii) Model Updating
(iii) Damage Identification and Performance Diagnostics of Structures
(iv) Practical applications of structural reliability
The main focus of this Mini-Symposium is on the discussion of modeling and simulation of the linear and nonlinear dynamical behavior of aerospace structures (such as airplanes, rockets, satellites etc.), and how these problems can be understood and solved in view of numerical, computational, theoretical and experimental approaches. Contributions pertaining to any class of mathematical problems and methods associated to the linear and nonlinear dynamics and stability of aerospace structures will be welcome. It will also be considered experimental investigations of these problems to validate mathematical and numerical models.
Passive and active control strategies using an energy transfer in a non-ideal structure coupled to an essentially nonlinear oscillator taking into account parametric errors (authors: José Manoel Balthazar, Technological Institute of Aeronautics ITA and São Paulo State University; Angelo Marcelo Tusset – Federal Technological University of Parana; Jorge L. P. Felix – Federal University of Fronteira Sul; Americo Cunha Jr. – Rio de Janeiro State University; Reyolando M. L. R. F. Brasil – Federal University of ABC and University of São Paulo; Vinicius Picirillo, Rodrigo T. Rocha and Frederic Conrad Jansen – Federal Technological University of Parana; Airton Nabarrete and Edson Cereja – Technological Institute of Aeronautics ITA)
Joakim Sundnes – Simula Research Laboratory and University of Oslo, Norway – firstname.lastname@example.org
Rodrigo Weber dos Santos – Universidade Federal de Juiz de Fora (UFJF), Brazil – rodrigo.weber
Bernardo Rocha – Universidade Federal de Juiz de Fora (UFJF), Brazil – bernardomartinsrocha
Pablo Javier Blanco – Laboratório Nacional de Computação Científica (LNCC), Brazil – email@example.com
This mini-symposium focuses on computational models of cardiovascular system, under normal conditions or different cardiac pathologies. Multiple types of computational and mathematical models are being used to describe the heart and the vascular system at different levels of details. For instance, relatively simple models of electromechanics of single cardiac myocytes have been employed to characterize the main properties of single myocyte contraction. Likewise, simple lumped models have been traditionally used to characterize cardiac output, volume and pressure. In the other end, there are extremely complex models that deals with fluid-structure interactions, or with whole heart electromechanics. Therefore, detailed physiological models may involve multiple scales, from intracellular to whole organ or system, and mutliphysics, such as cardiac electromechanics, fluid flow and metabolic pathways. The development of sophisticated models may involve the characterization of mechanical properties of cardiac tissue, vessels and blood; the anatomical organization of this tissue in fibers and sheets; the organization of the vascular tree and their relation to cardiac perfusion, among many other physical parameters of interest. Computational modeling is clearly an important tool that allows the investigation of the details of these complex systems, as well as the interaction between them.
We invite investigators to contribute original research articles as well as review articles on modeling of cardiovascular mechanics. Potential topics include, but are not limited to:
– Basic theory of heart mechanics: action potential, cardiac contraction, arterial blood flow, cardiac metabolism, perfusion and cardiac output.
– Models that couple different physics and scales, for example, models of electromechanical coupling, multiscale constitutive modeling or fluid-structure interaction.
– Relation between anatomy, microstructures, and cardiovascular mechanics.
– Variational methods and sensitivity analysis in the context of the cardiovascular system
– New techniques to bring cardiac simulations closer to the clinic, for example via data assimilation and patient specific models.
– Results and methods that bring the models’ response time closer to clinical needs, including development of new models, numerical methods, and the use of parallel computing techniques.
– The use of models as a platform for the development of new clinical exams, new treatments and drugs for cardiovascular diseases.
– The use of models to better understand the relations between cardiovascular system and clinical invasive and noninvasive measurements, such as the electrocardiogram, and different imaging techniques.
Prof. Ellen Kuhl, Stanford University
Raul R. Silva – Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil – firstname.lastname@example.org
Paulo B. Gonçalves – Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Brazil – email@example.com
Frederico M. Alves da Silva – Federal University of Goiás (UFG), Brazil – firstname.lastname@example.org
Renata Machado Soares – Federal University of Goiás (UFG), Brazil – email@example.com
Zenon José Guzman Nuñez del Prado – Federal University of Goiás (UFG), Brazil – firstname.lastname@example.org
Static and dynamic instability analysis and structural dynamics stand at the heart of structural and continuum mechanics. In spite of decades of research in these areas, they continue to be a topic of interest in all engineering fields and new topics of research are constantly appearing in the literature. The aim of this mini-symposium is to gather specialists of different areas working on instability phenomena in materials and structures, structural dynamics and nonlinear phenomena in engineering applications. Topics of interest include, but are not limited to, static and dynamic stability of bars, plates and shells, including elastic and non-elastic instability phenomena, stability design of steel and concrete structures, non-linear local and global bifurcations, linear and nonlinear structural dynamics, vibration control, soil-structure and fluid-structure interaction and chaos and fractals. Papers are solicited in all areas related to theoretical, computational and experimental aspects of the problem.
Phase-field modeling dates back to the pioneering works of Van der Waals. Today it is an important tool in engineering and natural sciences that involve the evolution of interfaces, to enumerate a few: the dynamics of multi-components and multi-phase fluids, for example in binary alloys, polymer blends, boiling, etc; the development and propagation of fractures in solids; dendritic crystal growth; the evolution of tumors in the macro-scale; etc. Phase-field models, along with its thermo-mechanical theoretical grounds, it is an appealing alternative approach to interface-tracking methods. Also known as diffuse-interface models, such models implicitly track the position and the topology of the interfaces by applying smoothly varying scalar fields, implying this way interfaces of finite width where bulk forces compete with interfacial ones. From a partial differential equation point of view, such models generally engender high-order differential operators and possibly nonlinear equations. Phase-field models, thus, bring a new set of challenges for different scientific communities. In this mini-symposium, we invite contributions in the broad area of engineering mechanics applications, numerical methods and implementation of phase-field codes. We expect a multidisciplinary audience and a lively exchange atmosphere.
Recent developments in computational and sensing resources provide us the ability to infer about physical phenomena with increasingly detailed resolutions and to better characterize the interplay between experimentally observed cause and effect. In many problems of interest, this interplay is best described in a non-deterministic framework, permitting the description of experimental errors and inaccuracies, modeling errors and inadequacies, as well as numerical approximations.
These uncertainties conspire, with interpretation and analysis tools, to affect the predictive power of accumulated knowledge.
This workshop will bring together current research efforts attempting to characterize and manage uncertainties in various stages of the prediction process. Also the visualization of uncertainties in order to help the decision-making process. In particular, research in the following areas will be highlighted:
- experimental data representation
- data assimilation and inverse analysis
- uncertainty propagation
- non-deterministic computational modeling
- optimization and design under uncertainty
- visualization of uncertainties
- stochastic modeling
- surrogate models
- model-order reductions
- small probability events
- application examples and case studies
- Bayesian inference
The symposium will address thin shell or thin sheet structures at a variety of length scales. Of particular focus are structures using origami and kirigami principles to create reconfigurable, adaptive, and morphing structural systems. These systems can achieve multifunctional and tunable properties through motion or planned instabilities. Research topics will include the kinematics, mechanics, design, and application of the thin shelled and adaptive structures.
Dr. James W. Case, Uzun+Case, LLC (Structural Engineers), USA (Learning from Art)
Topology optimization has long been used by scientists and engineers from a wide range of disciplines and industries to produce optimal designs, both in terms of geometry and material distribution. However, recent advances in additive manufacturing technology have spawned a renewed interested in topology optimization, as previously impractical freeform designs can now be fabricated with relatively low cost. This trend helps to demonstrate the versatility of the topology optimization approach, which allows us to achieve optimal conceptual designs, and reduce reliance on engineering intuition. At the same time, topology optimization presents many unique mathematical and computational challenges, which make it an especially interesting domain for research and investigation. This mini-symposium will provide a forum for the global design optimization community to come together to share recent innovations that highlight the diversity and richness of topology optimization research.
This mini-symposium welcomes submissions covering topics including but not limited to:
– High-performance computing methods for topology optimization
– Application of topology optimization techniques to additive manufacturing processes
– Shape optimization and level set methods
– XFEM/GFEM-based topology optimization
– New trends in reliability-based topology optimization, and optimization under uncertainty
– Novel optimization algorithms for large-scale constrained topology optimization
– Structural optimization of nonlinear response, including material damage and finite deformation
– Recent Developments in design optimization for multidisciplinary and multi-physics problems
– Topology optimization of smart materials and meta-materials
– Biomimetic design using topology optimization
Prof. Tuo Zhao, Georgia Tech (Nonlinear topology optimization considering plasticity through an asymptotic approach: Max Strain Energy and Max Load Factor Formulations)
Dynamical systems are those whose state changes over time, an example is a pendulum oscillation. Such systems can be found in many science areas and its evolution law is described mathematically through differential equations. The control theory is an interdisciplinary theme originating in engineering and mathematics that aims to influence the behavior of dynamic systems.
Mechanical vibrations are examples of dynamical systems. They are caused by time-varying excitations that are submitted components, set of components or complete structures. Excessive vibrations in these systems are not desirable as it may compromise the performance and also cause its collapse. In this context, the vibration control is a technology which aims to reduce excessive vibration levels through the installation of external devices or the action of external forces which promote changes in the stiffness and damping system. The main objective of this mini-symposium is to bring together experts working in vibration control and its application to present and discuss the latest developments in the field.