한국안전학회지 (Journal of the Korean Society of Safety)
- 제11권1호
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- Pages.11-15
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- 1996
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
배관용 재료의 설계시 안전성 평가에 관한 연구(III)
A Study on the Safety Evaluation of Design for Piping Materials(III)
초록
For the assessment of fracture behaviors of structural components, various fracture mechanics parameters have been applied to date. New approaches to analyze structural fracture performance under elastic-plastic condition have been proposed by the development of testing methods for characterization of material behavior which is defying to the analysis by conventional fracture parameters. In this study, on the assumption that, initiation of crack propagation of a piping materials occurs when the crack tip strain field reaches "the local fracture strain", following two major issues are discussed ; 1) The relationship between the critical value of J-integral(
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