21113 人工関節用アルミナのAE法による微視損傷検出とハイブリッド保証試験法の開発(バイオエンジニアリング(3),OS3 バイオエンジニアリング)

概要

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Microdamages during proof tests were monitored by AE technique, and residual strength of specimens which survived proof tests were investigated. Two AE behaviors, with and without increasing point of AE energy, were observed in proof tests. Specimens without increasing point of AE energy had higher residual strength than specimens with increasing point of AE energy. AE source location during proof tests and residual strength measurement demonstrated that the microcrack formed during proof tests were propagated to final unstable fracture during residual strength tests. Consequently, it was understood that proof test with AE technique which could detect microdamages during proof test insured higher reliability than proof test without AE technique.
2006-03-09