Preliminary examination of the modified lower-bound meso-damage constitutive model for porous materials

被引：0
|
作者：
Yin, YJ [1 ]
Fan, QS [1 ]
Wang, B [1 ]
机构：
[1] Tsing Hua Univ, Dept Engn Mech, Beijing 100084, Peoples R China
来源：
ITHERM 2000: SEVENTH INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOL 2, PROCEEDINGS | 2000年
关键词：
porous materials; mico void interaction; rigid-plastic; modified lower bound constitutive model;
D O I：
10.1109/ITHERM.2000.866200
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The paper aims at the examination of the modified lower bound rigid plastic constitutive model for porous materials by comparing it with other ones. Under uniaxial stress state, the porous copper's compressibility, ductility, strength property, deformation characteristics, stress similar to strain curves and damage evolution process predicted by these models are systematically contrasted with each other. The effectiveness of the scheme for modifying the lower bound model by introducing void interaction mechanism into its theoretical framework is verified.
引用
收藏
页码：256 / 262
页数：7
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