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I型平面应力准静态稳恒裂纹扩展
罗学富; 张晓堤; 黄克智
Source Publication清华大学学报(自然科学版)
1984
Volume24Issue:1Pages:21-31
ISSN1000-0054
Abstract根据J2流动理论并采用有限元法分析了小范围屈服条件下,各向同性幂强化材料及理想塑性材料中的准静态I型平面应力稳恒裂纹扩展问题。计算结果表明,与平面应变情况不同,对于平面应力稳恒裂纹扩展,材料的强化指数N对塑性区形状有显著影响。对理想塑性材料,在裂纹延长线上(θ=0),应变似呈现对数奇异性。计算中未发现有二次塑性区。利用 COD断裂准则得出,应力强度因子比 Kss/Kc也强烈地依赖于材料常数σ0/G及强化指数N。
KeywordI型平面应力 裂纹扩展
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/37468
Collection力学所知识产出(1956-2008)
Corresponding Author罗学富
Recommended Citation
GB/T 7714
罗学富,张晓堤,黄克智. I型平面应力准静态稳恒裂纹扩展[J]. 清华大学学报(自然科学版),1984,24,1,:21-31.
APA 罗学富,张晓堤,&黄克智.(1984).I型平面应力准静态稳恒裂纹扩展.清华大学学报(自然科学版),24(1),21-31.
MLA 罗学富,et al."I型平面应力准静态稳恒裂纹扩展".清华大学学报(自然科学版) 24.1(1984):21-31.
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