Molecular Dynamics simulations of crack propagation mode in silica

被引:0
|
作者
Van Brutzel, L [1 ]
Bouchaud, E [1 ]
机构
[1] CEA Saclay, SRMP, F-91191 Gif Sur Yvette, France
关键词
D O I
暂无
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Using Molecular Dynamics simulations, we investigate the initiation and the propagation of a crack at the atomic scale in beta-cristobalite and in amorphous silica. It was found that in the crystal the crack propagates by decohesion whereas in the amorphous the crack propagates by growth and coalescence of cavities like in ductile materials. These different behaviors find their origin in the differences of the two structures.
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页码:231 / 235
页数:5
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