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. Research and development of analyzing methods for nonlinear thermo-mechanical-metallurgical problems in welding process
  2. Simulation of 3D printing process of functionally graded materials
  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 Field Measuring Technology and FEM (M-FEM) for nonlinear-fracture properties of materials and welding residual stress
  6. Analyzing methods from manufacturing processes such as metal forming and welding to strength evaluation

Prof.
N.Ma


Assoc.Prof.
H.Serizawa


S.A.
Researcher

K.Narasaki

   
S.A.
Researcher
A.Kawahara


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 modelling of 3D printing thermal-mechanical process of functionally graded materials .
(e)Electric-thermal-mechanical coupling simulation of resistance spot welding process and strength evaluation of spot welds in a stamped part of automotive body.

 
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