計装化衝撃試験方法の検討 : 第2報、修正J-R曲線の決定方法と延性破壊温度域への適用

概要

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Instrumented Charpy tests and static J_<IC> tests were conducted on fatigue-cracked and V-notched specimens of A508 Cl.3 steel at 100℃・ A proposed key-curve method to compare the P-S curves of the two types of specimens and a partially loaded instrumented Charpy test using a newly designed stopper proved to be applicable not only at the transition temperature, but also at the ductile fracture temperature region, regardless of testing speed. Also, a simple formula to evaluate the Ernst's Modified J-integral was derived, and showed to have a sufficient accuracy well beyond the J-control led crack growth regime.
一般社団法人日本機械学会の論文
1988-04-25