Study of avalanches during the fracture of discrete models

被引：4
|
作者：
Delaplace, A
Roux, S
Pijaudier-Cabot, G
机构：
[1] LMT, F-94235 Cachan, France
[2] SVI, Unite Mixte CNRS St Gobain, F-93303 Aubervilliers, France
[3] Ecole Cent Nantes, R&DO, Lab Genie Civil Nantes St Nazaire, F-44321 Nantes 3, France
来源：
ENGINEERING FRACTURE MECHANICS | 2003年 / 70卷 / 7-8期
关键词：
fracture; discrete models; heterogeneity; avalanche; internal length;
D O I：
10.1016/S0013-7944(02)00159-5
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Fluctuations on material response due to heterogeneity are known to contain intrinsic properties of the material. Two simple discrete models are presented and the fluctuations encountered on their responses are analyzed through avalanche distributions, which represent the evolution of micro-events of degradation in the material. Both models are based on the fiber bundle model. The first one deals with the propagation of an infinite ID crack between an elastic body and a rigid substratum. The second one deals with the rupture of a softening heterogeneous material coupled to an elastic body. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：943 / 955
页数：13
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