Experimental and Numerical Studies on Crack Kinking Phenomena in Bimaterial Specimen(Crack Growth)
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概要
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An investigation was undertaken into the interfacial crack kinking phenomena in a bimaterial specimen of epoxy and aluminum alloy using a combination of experimental method and numerical simulation. It was found that all kinked fractures occurred at loading angles equal to or larger than 120°, and this was attributed to the direction of the global shearing mode. Three categories of fracture pattern were identified (A, B and C). In the case of type A fracture, the (J_1^0)_<kink> integrals were generally higher than the homogeneous epoxy J_<ic> at loading angles of 120° and above. In contrast, for types B and C fracture, the J_1^0 integrals were consistently lower than the homogeneous epoxy J_<ic>. Predictions of crack kinking behavior made using the Maximum Energy Release Rate Criterion (MG-criterion) were found to agree well with the observed experimental results.
- 一般社団法人日本機械学会の論文
- 2001-10-20
著者
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Nishioka Toshihisa
Department Of Ocean Electro-mechanical Engineering Kobe University Of Mercantile Marine
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YAO Jianliang
Department of Ocean Mechanical Engineering, Kobe University of Mercantile Marine
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FUJIMOTO Takehiro
Department of Ocean Mechanical Engineering, Kobe University of Mercantile Marine
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Yao Jianliang
Department Of Ocean Mechanical Engineering Kobe University Of Mercantile Marine
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Yao Jianliang
Department Of Ocean Mechanical Engineering Kobe University
関連論文
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- The State of the Art in Computational Dynamic Fracture Mechanics
- An Alternating Method for Analysis of a Group of Interacting Multiple Elliptical Cracks in an Infinite Solid : Solid-Mechanics, Strength of Materials
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