結合力要素を用いた有孔CFRP積層板の疲労損傷進展解析

矢代 茂樹, 岡部 朋永

研究成果: Contribution to journalArticle

抄録

This study presents a numerical simulation to predicting damage progress in notched composite laminates under cyclic loading by using cohesive zone model. A damage-mechanics concept was introduced directly into the fracture process in cohesive elements in order to express the crack growth by cyclic loading. This approach then conformed to the established damage mechanics and also facilitated understanding of the procedure and the reduction of computation costs. We numerically investigated the damage progress in holed CFRP cross-ply laminates under tensile cyclic loading and compared the predicted damage patterns with experiments. The predicted damage patterns agreed with the experiment results that exhibited the extension of the multiple types of damage (i.e., splits, transverse cracks and delamination) near the hole. A numerical study indicated that the change in the distribution of in-plane shear stress due to delamination induced the extension of splits and transverse cracks near the hole.
寄稿の翻訳タイトルNumerical Prediction of Fatigue Damage Progress in Holed CFRP Laminates Using Cohesive Elements
本文言語Japanese
ページ(範囲)310-315
ページ数6
ジャーナルNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
75
751
出版ステータス出版済み - 3 25 2009

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