Changes in the Magnetic Fields of Star-shaped JIS-SKS93 Plates Embedded in Clear Acrylic Cold Mounting Resin under Tensile Stress
Fatigue failure of machine components occurs when cracks form in the stress concentration area and propagate under continued loading during component work. In order to understand the relation between the phenomena of stress concentration and crack propagation, non-destructive evaluation methods using in-situ measurements in the stress concentration areas are necessary. In the present work, a scanning Hall probe microscope (SHPM) equipped with a GaAs film sensor was developed and the three dimensional magnetic fields were observed at room temperature in air. The effect of stress on the changes in the magnetic field in steel components is reported. A steel specimen (JIS SKS93) embedded in acrylic resin were strained at different loads and the magnetic field before and after straining were observed. The obtained magnetic images clearly corresponded with the shape of the steel plate. It was possible to measure the changes in the magnetic field of the steel sample after straining under tensile loading, by neutralizing the initial magnetic field of the specimens prior to testing.
Magnetic flux density JIS SKS93-acrylic Residual stress Tensile test
Megumi Uryu Katsuyuki Kida Takashi Honda Kenichi Saruwatari Edson Costa Santos Justyna Rozwadowska
Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka City, Fukuoka Prefecture, 819-0395, Japan
国际会议
沈阳
英文
884-890
2011-11-22（万方平台首次上网日期，不代表论文的发表时间）