A damage model for void configuration and failure under different constrained deformation regions in ductile matrix

被引：0
作者：
M. Kikuchi
M. Geni
机构：
[1] Science University of Tokyo,Mechanical Engineering
[2] Xinjiang University,Mechanical Engineering College
来源：
Metals and Materials International | 2001年 / 7卷
关键词：
MMC; SiC particle; SEM; FEM; stress-triaxiality; void volume fraction; void configuration; gurson model;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The constraint effects of SiC particle volume fractions and their specimen geometry are analyzed by conducting tensile tests while changing the SiC particle volume fraction 0%, 2% and 10% and the tensile specimen notch radius 0.5, 1.0, 2.0, 4.0, 8.0 and 16.0 mm. The effect of constraint on the void configuration and coalescence are investigated experimentally using 3-dimensional SEM fracture surface observations and 3-dimensional image analysis. It was found that the final void volume fraction and void shape were greatly affected by stress triaxiality and deformation constraint.
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页码：337 / 341
页数：4
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