Fracture of Metal Foams: A Discrete Modelling Approach

被引：0
|
作者：
Mangipudi, K. R. [1 ]
Onck, P. R. [1 ]
机构：
[1] Univ Groningen, Dept Appl Phys, Zernike Inst Adv Mat, NL-9747 AG Groningen, Netherlands
来源：
IUTAM SYMPOSIUM ON MECHANICAL PROPERTIES OF CELLULAR MATERIALS | 2009年 / 12卷
关键词：
CELL ALUMINUM FOAM;
D O I：
10.1007/978-1-4020-9404-0_12
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A discrete model based on two-dimensional Voronoi tessellation has been used to study damage and fracture in open-cell metal foams. The present study focuses on elastic-fracture behaviour of the foam. A competition mechanism among various damaging struts leading to damage localization and formation of a fracture band has been observed. The effect of relative density is presented in terms of scaling relationships for the peak stress and peak strain are presented here. Finally the detrimental effect of the effect of the presence of the precipitates will be studied as well, showing a severe knock-down in the strength and ductility.
引用
收藏
页码：105 / 113
页数：9
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