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  • Graduate School of Engineering
  • Division of Mechanical Engineering
  • Complex Mechanics Area


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    Solid Mechanics Subarea

    Professor SHIBUTANI Yoji   Associate Professor TARUMI Ryuichi   Associate Professor OKUMURA Dai   Assistant Professor TANAKA Hiro
    Any material consists of atoms or molecules. When it deforms under external loadings, no one can look over the deformation behavior both from macroscopic continuous and microscopic atomistic levels at the same time. Multiscale Modeling (MM) aims at linkage between the two viewpoints over the vast time and scale gaps. We are conducting the computational/theoretical MM of solid mechanics including the ab-initio calculations, molecular dynamics simulations and mathematical formulation based on the generalized elasticity and calculus of variation. In addition, we are also conducting nanoindentation experiments for size-dependent plastic deformation, mechanical design of flexible joint structures, and non-destructive evaluation of defects in solid by means of scanning electron-induced acoustic microscope (SEAM).

    Multiphase flow Science and Engineering Subarea

    Professor TANAKA Toshitsugu   Associate Professor TSUJI Takuya   Assistant Professor WASHINO Kimiaki
    Flows including solid particle are seen in a wide range of industrial equiput and in nature. It shows very complex and intriguing bahaviors due to the structure formation by particles. We perform studies to advance our understandings on the flow physics and to develop reliable numerical models. Application studies based on these fundamentals are also our scope of study.

    Theory and Application of Nonlinear and Nonequilibrium Phenomena in Fluid Mechanics Subarea

    Professor YANO Takeru   Assistant Professor INABA Masashi
    Research in our group encompasses a wide range of nonlinear and nonequilibrium fluid phenomena from molecular to macroscopic scales, focusing on the fundamental aspect, and aiming at the establishment of novel nonlinear and nenequilibrium fluid mechanics.

    Nanostructural Engineering Subarea

    Associate Professor HIRAHARA Kaori
    In-situ electron microscopy with nanometer-scale manipulation technique is the powerful method to investigate mechanical properties of nanomaterials. Our research group has conducted fundamental studies on machining process, plastic deformation mechanism, wetting behavior, Gecko-like adhesive behavior and oscillation properties of carbon nanotubes (CNTs), carbon nanocoils and related materials, with utilizing transmission- and scanning- electron microscopes equipped with nanomanipulation system operated with 0.1 nm order accuracy. We also have tried to develop novel components for nanomechanical systems and functional materials with making the best use of unique and nice properties originated in the fine structures of nanocarbon materials.

    Complex Fluid Mechanics Subarea

    Our group studies the flow behavior of complex fluids such as polymeric liquids, suspensions, surfactant solutions, emulsions, and liquid crystals. We investigate the flow of these fluids by both experimental and numerical approaches.

    Thermo-Hydro Dynamics Subarea

    Assistant Professor NAKATSUKA Noriaki

    Mechanical Dynamics Subarea

    Professor ISHIKAWA Masato
    Walk, Swim, Rock and Roll —. We exploit every aspect of “motion”, with full aid of deepest understanding in classical mechanics, dynamical system theory, nonlinear control, robotics, mechatronics, or even in zoology, linguistics, etc. Our recent interest is centered at the principle of locomotion, induced by contact constraint between the body and its environment. We equally put importance on unbiased observation, mathematical thinking and rapid manufacturing.

    Reaction and Transport Dynamics in Energy Devices Subarea

    Professor TSUSHIMA Shohji   Assistant Professor SUZUKI Takahiro
    Aiming at the technological advance of the next-generation energy conversion devices such as fuel cells and flow batteries, we perform rearch to elucidate chemical reaction and transport phenomena in the devices.


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