About OJI KIYOTSUGU
About 大阪大学名誉教授
About KUBO SHIRO
About 摂南大学理工学部機械工学科
About fracture mechanics
About History
About review
About Japan
About crack tip
About stress field
About design
About lifetime evaluation
About strength design
About strength evaluation
About singular stress field
About Fracture mechanics
About Crack
About Stress intensity factor
About J-integral
About Mechanics of fracture in general
About 破壊力学
About 研究
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About 日本