THE EFFECT OF MATERIAL STOCHASTICITY ON CRACK DAMAGE INTERACTION AND CRACK-PROPAGATION

被引：13
|
作者：
SILBERSCHMIDT, VV
CHABOCHE, JL
机构：
[1] OFF NATL ETUD & RECH AEROSP,F-92322 CHATILLON,FRANCE
[2] RUSSIAN ACAD SCI,DEPT URAL,INST MIN,PERM 614007,RUSSIA
来源：
ENGINEERING FRACTURE MECHANICS | 1994年 / 48卷 / 03期
关键词：
D O I：
10.1016/0013-7944(94)90128-7
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The problem of propagating crack characterization is examined for a case of a stochastic brittle medium. Crack damage interaction and its influence on fracture kinetics are accounted for by means of continuum damage, mechanics and stochastic values of stress intensity factor. The two-dimensional problem of a crack propagation in a rectangular cross-section of a notched specimen is numerically simulated. It is shown that the fractal dimension of a crack front is a fracture process invariant for stochastic materials. The effect of a material's stochasticity on the characteristic features of crack propagation and on the crack front morphology is studied.
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页码：379 / 387
页数：9
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