FRACTURING DESCRIBED BY A SPRING-BLOCK MODEL

被引：21
|
作者：
ANDERSEN, JV
BRECHET, Y
JENSEN, HJ
机构：
[1] ENSEEG,LTPCM,F-38402 ST MARTIN DHERES,FRANCE
[2] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT MATH,LONDON SW7 2BZ,ENGLAND
来源：
EUROPHYSICS LETTERS | 1994年 / 26卷 / 01期
关键词：
D O I：
10.1209/0295-5075/26/1/003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A spring-block model containing only one parameter, the ratio between the threshold for block slips and the threshold for springs to break, is introduced to study general features of the statics and dynamics of fracturing. We find that a domain growth of positive and negative components of the stress field before cracking sets in is crucial for the pattern formations of the cracks. The domain growth obeys an algebraic growth law. The total number of cracks and the size distribution for crack events have been calculated as a function of the ratio between the threshold for spring breaking and the threshold for block slips, and as a function of time.
引用
收藏
页码：13 / 18
页数：6
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