1131 圧子圧入法によるファインセラミックスの残留応力とその勾配の測定(G03-1 材料力学(1)計測1,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

抄録

In evaluation of fine ceramic components reliability, it is very important to know residual stress introduced to the material surface in the fabrication process. X-ray diffraction method has been sometimes used to measure the residual stress for ceramics, but there are some difficulties in both high cost and harmful radiation. To overcome such difficulties, a simple method to measure the residual stress based on the indentation fracture (IF technique) was standardized by the Society of Materials Science, Japan, in 2001. In order to verify this method, the residual stress induced by bending load was actually measured. Thus the residual stress obtained was in good agreement with the stress artificiality given by bending loading machine.