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The Analysis of the J-Integral Elastic-Plastic Characters
Author(s): 
Pages: 385-389
Year: Issue:  4
Journal: JOURNAL OF XI'AN UNIVERSITY OF TECHNOLOGY

Keyword:  J-积分塑性区应力强度因子塑性能;
Abstract: 讨论了塑性区内J-积分与积分路径的关系问题,研究了积分塑性项对J-积分的贡献,分析了铝合金7075-T651和钢HT-130材料的紧凑拉伸试件在不同载荷下J-积分与积分路径的关系.计算结果表明,在弹塑性情况下,塑性区内的J-积分是与积分路径相关的,这一性质是由积分塑性项Jp所决定,完整的J-积分值由应力强度因子KⅠ和积分边界所围区域内的塑性能up共同决定.
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