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伴随微孔洞生长的裂纹弹塑性定常扩展
魏悦广
Source Publication力学学报
2000-05-19
Volume32Issue:3Pages:291
Abstract从传统的断裂过程区模型出发研究微孔洞的萌生和生长对材料总体断裂韧性的影响,通过采用Gurson模型,建立塑性增量本构关系,然后针对定常扩展情况直接进行分析。孔洞对材料断裂韧性的影响由本构关系刻划,而在孔洞汇合模型中,上述影响则由断裂过程区的改变来体现。研究结果显示出,微孔洞的萌生与生长将使材料断裂韧性降低并随着初始孔洞体积百分比的增大,裂纹呈脆性扩展且发生损伤破坏。
Keyword孔洞生长 弹塑性 定常扩展 断裂韧性 损伤破坏
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金!(19891180 ; 19925211)
CSCD IDCSCD:703789
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/41904
Collection力学所知识产出(1956-2008)
Corresponding Author魏悦广
Recommended Citation
GB/T 7714
魏悦广. 伴随微孔洞生长的裂纹弹塑性定常扩展[J]. 力学学报,2000,32(3):291.
APA 魏悦广.(2000).伴随微孔洞生长的裂纹弹塑性定常扩展.力学学报,32(3),291.
MLA 魏悦广."伴随微孔洞生长的裂纹弹塑性定常扩展".力学学报 32.3(2000):291.
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