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扩展裂纹尖端弹塑性场
魏悦广; 王自强
Source Publication力学学报
1994-01-19
Issue01Pages:39-48
ISSN0459-1879
Abstract本文通过对幂硬化材料中平面应变Ⅰ型裂纹的扩展过程进行精细的弹塑性有限元计算;给出扩展裂纹尖端附近环形区域内弹塑性场的分布。首次提出适用于扩展裂纹尖端环形区域的三项解。其中旨项为HRR奇异解;第二项反映三轴应力的强弱;第三项与HRR奇异性项相比还含有线性项;并指出:扩展裂纹尖端环形区域弹塑性应力应变场的分布和强弱可由J-Q-k_2三参量刻划。此结论适用于不同试样几何;不同材料硬化指数以及由小范围屈服至全面屈服的不同屈服程度。
Keyword扩展裂纹 弹塑性场 三参量表征
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金
CSCD IDCSCD:243935
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/72309
Collection力学所知识产出(1956-2008)
Recommended Citation
GB/T 7714
魏悦广,王自强. 扩展裂纹尖端弹塑性场[J]. 力学学报,1994(01):39-48.
APA 魏悦广,&王自强.(1994).扩展裂纹尖端弹塑性场.力学学报(01),39-48.
MLA 魏悦广,et al."扩展裂纹尖端弹塑性场".力学学报 .01(1994):39-48.
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