セラミックスの強度信頼性解析

概要

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General reliability analysis and strength reliability of ceramics are reviewed. The general statistical theory of brittle fracture derived by the authors involves 3 random variables, namely, fracture stress, fracture location and flaw-orientation angle, which is based on the fracture statistics and fracture mechanics. Using this theory, we can analyze or estimate various fracture-related properties of ceramics, for instance, strength distribution, distribution of fracture location, flaw-size distribution of fracture origin, flaw-orientation angle distribution of fracture origin, fatigue-life-time distribution for individual cause of fracture. Further, theory of Non-destructive inspection and theory of surface strengthening of ceramics are derived using flaw-size distribution function of fracture origin. The significance of the information related to fracture is pointed out with some theoretical and numerical examples.
一般社団法人日本機械学会の論文
2007-11-16