Region of Research

 Fundamental areas of research and education are the mathematical and numerical modellings of various phenomena involved in the joining & welding and their application to industrial problems through the information technology. The former corresponds to "seeds". The latter is their application to practical "needs" such as the assessment of the performance and the reliability of various structures. These are studied from strategic point of view. In addition, the influences of residual stress and various forms of defects or the performance of the welded joints and the joints between dissimilar materials are investigated.

Current Research Subjects

  1. Development of simulation methods for nonlinear thermo-mechanical-metallurgical problems considering welding process
  2. Quantitative analysis of joining process and solution of associated problems
  3. Strength evaluation of structures made of heterogeneous materials
  4. Development of computational methods to estimate welding distortion and residual stress of large structures
  5. Integration of Measurement and FEM (M-FEM) for material local properties and welding residual stress
  6. Analyzing methods from manufacturing processes such as metal forming and welding to strength evaluation





Concept and purpose of joining mechanics and analyses.

(a)Analysis and measurement of welding distortion in a part of motorcycle.
(b)Numerical analysis of friction stir welding with moving particle.
(c)Prediction of penetration shape in MIG welding of aluminum alloy.
(d)Numerical modeling of laser joining for dissimilar materials.
(e)Welding residual stress measurement by inherent strain method

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