Organized Workshops

The two-days workshops will consist of invited lectures and contributed presentations. All speakers are invited. If you are interested in contributing to one(s) of the workshops listed below, please contact the corresponding workshop organizer(s) via e-mail.


OW1: Modeling and simulation of complex fluids and biological flows

The aim of this workshop is to bring together researchers who work on mathematical modeling and numerical simulation of complex fluids and biological flows. We will discuss the behavior of bubbles, drops, fibers, and capsules in flows, the rheological property of emulsions and particle suspensions, and the biophysics and biomechanics of biological cells, and subcellular components. This class of problems involves multi-phase flow, fluid-structure interaction, and multi-physics at multi-scales. Hence, the topics will cover recent advancements of modeling and computational techniques for a wide range of physical and engineering problems.

Organizer:
  • Yohsuke Imai* (Kobe University, Japan)
  • Kosuke Hayashi (Kobe University, Japan)
  • Daiki Matsunaga (Osaka University, Japan)

* Corresponding organizer
e-mail address: yimaimech.kobe-u.ac.jp

Invited speakers (Tentative):

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OW2: Advances in structural and multidisciplinary optimization

Growing concerns in the recent years about effective design approaches for new or advanced materials/structures have triggered much interest in utilization of numerical technologies and development of structural and multidisciplinary optimization in various engineering fields. These interests have led to emerging strategies, e.g., material topology optimization, multiple material optimization, hierarchical or multi-scale optimization etc. These strategies may be extended to design problems of the complex material/structural behavior based on a physical point of view. This workshop discusses the recent development in structural and multidisciplinary optimization including all pending challenges in this area, for example,

Optimal design of microstructure based on homogenization method
Hierarchical optimization of material and structures
Composite materials and structures
Optimization with multi-scale analysis
Enabling innovations in design optimization
Material and/or kinematical nonlinearity for material design and optimization
Phase-field and level-set method for material design
Optimal design of functional materials
Optimization based on thermo-mechanics, fluid dynamics, electromagnetics
Optimization problems of multi-physics
Material parameter identifications and inverse problems

Organizer:
  • Shintaro Yamasaki* (Osaka University, Japan)
  • Junji Kato (Nagoya University, Japan)
  • Hiroshi Isakari (Nagoya University, Japan)
  • Hiroya Hoshiba (Nagoya University, Japan)

* Corresponding organizer
e-mail address: yamasakimech.eng.osaka-u.ac.jp

Invited speakers (Tentative):

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OW3: Deep and machine learning methodology in the context of application to computational engineering

Application of artificial intelligence technology in the field of computational mechanics has been established for a long time. However, many examples of applying deep learning technology currently dominating the world to computational mechanics have not been reported yet. The objective of the symposium is to discuss how to apply artificial intelligence such as deep and machine learning technologies to computational engineering fields. Anything related to computational engineering or artificial intelligence toward uniting both technologies into significant and beneficial applications are welcome. It is necessary to discuss examples that make it possible to simulate objects that were difficult to simulate in the past, or to improve the accuracy of simulations that have been done in the past.

Organizer:
  • Yoshitaka Wada* (Kindai University, Japan)
  • Masao Ogino (Daido University, Japan)
  • Yasushi Nakabayashi (Toyo University, Japan)
  • Akio Miyoshi (Insight Inc., Japan)

* Corresponding organizer
e-mail address: wadamech.kindai.ac.jp

Invited speakers (Tentative):

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OW4: Frontiers of nonlinear, impact and instability analysis of solids and structures

These failures of solids and structures are often connected to their nonlinear behaviors and instabilities that can occur in various application fields. In many applications, harnessing the potential of such nonlinearity hinges on whether the deformation, failure, instabilities and frictional contact of solids and structures can be understood, prevented, or controlled. Meanwhile, recently, researchers are planning to take advantage of the presence of nonlinear behaviors and instabilities in order to design solids and structures that have advantageous properties. To realize these concept, the additive manufacturing technique and multi-functional materials are also utilized. Analyzing these phenomena requires the development of new modeling and computational approaches and techniques.
The main purpose of this workshop is to bring together researchers and academics who work in the fields mentioned above, and to discuss the state-of-the-art theories and computational methods applied to nonlinear, impact and instability problems of solids and structures.
Topics of interest include (but are not limited to):
nonlinear analysis, material failure, contact problems, instability problems, friction, optimization, additive manufacturing, multi-functional materials.

Organizer:
  • Shingo Ozaki* (Yokohama National University, Japan)
  • Dai Okumura (Nagoya University, Japan)
  • Kuniharu Ushijima (Tokyo University of Science, Japan)
  • Kazuaki Inaba (Tokyo Institute of Technology, Japan)

* Corresponding organizer
e-mail address: s-ozakiynu.ac.jp

Invited speakers (Tentative):

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OW5: Computational methods for hard-to-solve numerical problems in solid mechanics

This workshop aims to exchange opinions on the solid/structural topics that are difficult to solve with general-purpose software.
With the spread of general-purpose finite element software, many numerical problems in solid/structure areas can usually be solved without trouble.
Meanwhile, there still remain some problems that are difficult to solve, e.g., severe large deformation problems, nearly incompressible problems, solid-structure coupling problems, and fluid-structure interaction problems.
These problems frequently bring severe accuracy loss and lack of robustness due to various locking, pressure checkerboarding, numerical instabilities, and so on.
In this workshop, recent progress in formulations of finite element, finite volume, or particle method to overcome these issues is discussed.
Also, advanced utilization techniques of general-purpose software are discussed as well.

Organizer:
  • Yuki Onishi* (Tokyo Institute of Technology, Japan)
  • Koji Nishiguchi (RIKEN, Japan)
  • Takeki Yamamoto (Tohoku University, Japan)
  • Hirofumi Sugiyama (University of Yamanashi, Japan)

* Corresponding organizer
e-mail address: yonishia.sc.e.titech.ac.jp

Invited speakers (Tentative):
  • Christian Peco (Pennsylvania State University, USA)
  • Chun Hean Lee (University of Glasgow, UK)
  • Guglielmo Scovazzi (Duke University, USA)
  • Hirofumi Sugiyama (University of Yamanashi, Japan)
  • Hiroyuki Minaki (Bridgestone Corporation, Japan)
  • Jun Liu (A*STAR, Singapore)
  • Koji Nishiguchi (RIKEN, Japan)
  • Takeki Yamamoto (Tohoku University, Japan)
  • Yuki Onishi (Tokyo Institute of Technology, Japan)

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OW6: High performance computing for computational engineering and science

Recently, various applications in the field of computational mechanics, such as computational fluid dynamics and structural analysis, demand high performance computing in order to achieve large-scale simulations. These applications require novel algorithms and computational methods optimized for modern multi- and many-core processors, such as GPU accelerators or Xeon Phi processors, and supercomputers equipped with these processors. In this workshop, we will discuss the state-of-the-art research in high performance computing for computational engineering and science. Emphasis will be on novel advanced applications and libraries optimized for recent supercomputers, and new algorithms and optimization techniques for modern architectures. Speakers from various kinds of backgrounds will address application design and performance results.

Organizer:
  • Takashi Shimokawabe* (The University of Tokyo, Japan)
  • Rio Yokota (Tokyo Institute of Technology, Japan)
  • Kohei Fujita (The University of Tokyo, Japan)
  • Hiroshi Kawai (Toyo University, Japan)

* Corresponding organizer
e-mail address: shimokawabecc.u-tokyo.ac.jp

Invited speakers (Tentative):

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OW7: Multiscale simulation and materials modeling

Multiscale simulations and materials modeling are now becoming extremely powerful tools for exploring the physical picture of nonlinear mechanical behavior of materials in the entire range from micro- to macro-scale. Multiscale simulation can derive the macro-scopic material behavior incorporating the influence of underlying micro-scopic material structure. On the other hand, multiscale materials modeling can reveal the physics and mechanics of material defects in each length- and time-scales. The information is then used in the simulation of the material behavior in the larger length- and longer time-scale. Although these multiscale approaches have been developed for several decades and made a lot of successes in the application to practical and scientific problems, it is necessary to enhance exiting multiscale concepts, and to develop new multiscale methods for making further contributions to the structural analysis and material design.

The aim of the workshop is to bring together scientists and engineers working in the multiscale simulations and materials modeling, and to discuss the recent advances in
the methodologies and applications of the multiscale simulations and materials modeling.

Organizer:
  • Mayu Muramatsu* (Keio University, Japan)
  • Masato Tanaka (Toyota Central R&D Labs., Inc., Japan)
  • Yuichi Tadano (Saga University, Japan)

* Corresponding organizer
e-mail address: muramatsumech.keio.ac.jp

Invited speakers (Tentative):

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OW8: Advances in geotechnical engineering

In the research field of geotechnical engineering, it is necessary to deal with complex problems, such as multi-scale and multi-physics problems, large deformation, and long-term prediction. Although great effort has been made to develop numerical simulation, there are still some difficulties in the prediction and evaluation for real problems. Furthermore, a lot of uncertainties should be considered because strong variability is generally included in the problems in geotechnical engineering. This OW aims to discuss recent development and state-of-the-art technologies in the research field of geotechnical engineering from the viewpoint of computational mechanics. This OW covers wide range of research topics, such as constitutive models, numerical methods, soil-structure interaction, soil-fluid interaction, geo-disasters, uncertainty quantification, and retainability based design.

Organizer:
  • Shuji Moriguchi* (Tohoku University, Japan)
  • Kentaro Nakai (Nagoya University, Japan)
  • Kazunori Fujisawa (Kyoto University, Japan)

* Corresponding organizer
e-mail address: s_moriirides.tohoku.ac.jp

Invited speakers (Tentative):

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OW9: Isogeometric analysis

This workshop offers valuable opportunities for researchers to present their latest ideas, developments, and applications in isogeometric analysis (IGA). IGA, which employs NURBS/T-spline geometry in the finite element analysis (FEA) application, was first introduced in 2005. Since then a number of researchers from both FEA and CAD communities have started to work on IGA, and proven its powerful effectiveness.
However, there still exist some technical problems, including modeling of complex geometries, generation of analysis-aware geometric models, and imperfections of trimmed geometries. Topics of interest include these issues as well as all aspects of IGA.

Organizer:
  • Kenji Takizawa* (Waseda University, Japan)
  • Takashi Maekawa (Waseda University, Japan)
  • Yuto Otoguro (Waseda University, Japan)

* Corresponding organizer
e-mail address: Kenji.Takizawatafsm.org

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OW10: Particle simulations for fluid and solid mechanics

Particle simulations have been widely used in various engineering fields not only for fluid dynamics but also for solid mechanics, in particular, because of their robustness in handling dynamic changes of free surface, propagation of discontinuous deformations and so on. Typical representative particle methods are Smoothed Particle Hydrodynamics (SPH), Moving Particle Simulation (MPS), Material Point Method (MPM), Particle-FEM(PFEM) and Peridynamics. The advantage of these methods may be related to their meshless features, and these features sometimes bring us difficulties in treatment of boundary conditions and in multi-phase problems with high density ratios. The aim of this workshop is to discuss and exchange ideas on the recent developments and current challenges in particle simulations.

Organizer:
  • Mitsuteru Asai* (Kyushu University, Japan)
  • Abbas Khayyer (Kyoto University, Japan)
  • Naoto Mitsume (University of Tsukuba, Japan)
  • Satoyuki Tanaka (Hiroshima University, Japan)
  • Masahiro Kondo (AIST, Japan)

* Corresponding organizer
e-mail address: asaidoc.kyushu-u.ac.jp

Invited speakers (Tentative):

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