Application of .EPSILON.J-integral to elasto-plastic crack problems under monotonic or cyclic loading (Physical meaning of J(.DELTA.J) and analysis of crack energy density)

Katsuhiko WATANABE; Yutaka KURASHIGE

doi:10.1299/kikaia.50.1983

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Application of .EPSILON.J-integral to elasto-plastic crack problems under monotonic or cyclic loading (Physical meaning of J(.DELTA.J) and analysis of crack energy density)

Katsuhiko WATANABE Yutaka KURASHIGE

Year: 1984 Journal: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A Vol: 50 (460)Pages: 1983-1991 Publisher: Japan Society Mechanical Engineers

DOI: 10.1299/kikaia.50.1983

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Abstract

本研究はき裂エネルギ密度εを任意の構成則に対し径路独立な形で評価するεJ 積分を弾塑性き裂に適用して,まず J, ΔJ の径路独立性の意味と物理的意味を明らかにすると共に新たな位置付けを行い,続いて単調荷重下,繰返し荷重下の有限要素解析を行ってεのεJ 積分による評価を試み,εJ 積分によるεの評価手法の確立をはかると共にεの弾塑性き裂に対する統一的パラメータとしての有効性を示したものである.

Keywords:

Monotonic function Meaning (existential) Energy (signal processing) Mathematics Materials science Mathematical analysis Philosophy Epistemology Statistics

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Fatigue and fracture mechanics

Physical Sciences → Engineering → Mechanics of Materials

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Numerical methods in engineering

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Application of .EPSILON.J-integral to elasto-plastic crack problems under monotonic or cyclic loading (Physical meaning of J(.DELTA.J) and analysis of crack energy density)

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