RESEARCHES

Solve various problems related to earthquakes by taking advangate of applied mechanics, mathematics and computer sciences.

• Extension and application of applied mechanics and mathematics theories
• Development and application of numerical analysis and simulation methods

Integrated Earthquake Simulation ( 8.1MB )

Full computation of earthquake hazards and disasters

Examples of integrated earthquake simulation

Inverse Analysis Methods of Identifying Crustal ( 5.3MB )

Stress inversion method: find equilibrating stress using measured strain and partial information on stress-strain relation

Elasticity inversion method: find local elasticity using densely measured displacement

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Development of sensing / simulation methods for civil infrastructures

Hierarchical Localization Algorithm based on Inverse Delaunay Tessellation
( 613kb )

Development of numerical simulation tool for analysis of failure phenomena

Numerical analysis method for failure phenomena, FEM-beta, is under development. This method employs particle discretization for field variables. Rigorous formulation and easy treatment of failure with reasonable computational cost enable us to perform monte-carlo simulation of structure collapse.

Monte-Carlo Simulation of Failure Phenomena using Particle Discretization
( 3.4MB )

Stress field tomography based on 3D photoelasticity

Non-destructive, no-contact measuring method for 3D stress field in materials has been developed. This method is based on 3D photoelastic measurement and nonlinear inverse analysis method. Technically, this method can be regarded as a tensor field tomography with equilibrium constraint.

Boundary Condition Identification based on 3D photoelasticity
( 790kb )

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