Associate Professor

KAKIUCHI Toshifumi
Associate Professor
Department of Mechanical Engineering
Mechanical Engineering Course

Research fields

We study strength of materials, particularly fracture caused by fatigue and crack, in order to prevent fatal failure accidents and to maintain high performance of various machines, for example, such themes as follows:

  • Fatigue fracture of light alloys (aluminum alloys, magnesium alloys, titanium alloys, etc)
  • Fatigue fracture of materials in various environments (high temperature, high humidity, hydrogen-charged, etc)
  • Fatigue fracture of coated / surface-modified materials (diamond-like carbon (DLC), tungsten carbide (WC), friction stir processing (FSP) , etc)
  • Fatigue fracture of welds (metal insert gas (MIG) welding, friction stir welding (FSW) , etc)
  • Fatigue fracture of micro materials (components with size of several tens of μm)

 There are many fatigue testing machines equipped in our laboratory, such as rotary bending fatigue testing machines (four-point bending and cantilever bending types), plane bending and torsion fatigue testing machines, electro-hydraulic fatigue testing machines and others. We study to clarify the mechanisms of fatigue fracture based on experiments using these machines and additional advanced analyses, such as XRD (X-ray diffraction), EBSD (electron backscattering diffraction), EPMA (electron probe micro analysis) and other methods.

Fig.1 Cantilever type bending fatigue testing machine Fig.2 Electro-hydraulic fatigue testing machine

Research Keywords

Strength of materials, Fatigue, Fracture mechanics

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