IMECH-IR  > 力学所知识产出(1956-2008)
固体材料不稳定性的特征
李国琛; 沈还; 凌贤伍
Source Publication力学学报
2001
Volume33Issue:3Pages:332
ISSN0459-1879
Abstract基于分析势函数的二次变分,从理论上证明了固体材料不稳定性主要取决于材质不断退化的重要特征。另一特征是,材料往往会由基本变形路径漂移为一个轴向应变被限定的模态以至失稳。文中以有限元方法计算模拟受周期性分布孔洞损伤的平面板材模型,结果显示,孔周边的应变局部化使变形路径转移到一个轴向应变被限定的失效模态。此类现象与金属板材拉胀实验中所观测到的结果相符合。
Keyword孔洞 分岔 材料不稳定性
Subject Area力学
Indexed ByCSCD
Language中文
CSCD IDCSCD:703887
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/16935
Collection力学所知识产出(1956-2008)
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GB/T 7714
李国琛,沈还,凌贤伍. 固体材料不稳定性的特征[J]. 力学学报,2001,33,3,:332.
APA 李国琛,沈还,&凌贤伍.(2001).固体材料不稳定性的特征.力学学报,33(3),332.
MLA 李国琛,et al."固体材料不稳定性的特征".力学学报 33.3(2001):332.
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