A damage-mechanics model for fracture nucleation and propagation

被引：2
|
作者：
Yakovlev, G. [1 ]
Gran, J. D. [1 ]
Turcotte, D. L. [2 ]
Rundle, J. B. [1 ,2 ,3 ]
Holliday, J. R. [1 ]
Klein, W. [4 ]
机构：
[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA
[2] Univ Calif Davis, Dept Geol, Davis, CA 95616 USA
[3] Santa Fe Inst, Santa Fe, NM 87501 USA
[4] Boston Univ, Dept Phys, Boston, MA 02215 USA
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2010年 / 53卷 / 03期
关键词：
Damage; Fracture; Nucleation; Fiber bundles; TIME DEPENDENCE; BREAKDOWN; BUNDLES;
D O I：
10.1016/j.tafmec.2010.06.002
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a composite model for earthquake rupture initiation and propagation is proposed. The model includes aspects of damage mechanics, fiber-bundle models, and slider-block models. An array of elements is introduced in analogy to the fibers of a fiber bundle. Time to failure for each element is specified from a Poisson distribution. The hazard rate is assumed to have a power-law dependence on stress. When an element fails it is removed, the stress on a failed element is redistributed uniformly to a specified number of neighboring elements in a given range of interaction. Damage is defined to be the fraction of elements that have failed. Time to failure and modes of rupture propagation are determined as a function of the hazard-rate exponent and the range of interaction. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：180 / 184
页数：5
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