Self-affine properties of fractures in brittle materials

被引：16

作者：

Parisi, A

Caldarelli, G

机构：

[1] Univ La Sapienza, INFM, Unita Roma 1, I-00185 Rome, Italy

[2] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

来源：

PHYSICA A | 2000年 / 280卷 / 1-2期

关键词：

roughness; fracture; brittle;

D O I：

10.1016/S0378-4371(99)00633-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the result of numerical simulations for a fracturing process in a three-dimensional solid subjected to a mode-I load in a quasi-static regime. The solid is described using the Born model on an FCC lattice with a starting notch. We obtain a value of the roughness exponent zeta similar or equal to 0.5 in agreement with the value measured in microfracturing experiments. Our result supports the idea that at small length scales the fracturing process can be considered as quasi-static, which is the basic of the possible application of the model of line depinning to the case of fractures. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：161 / 165

页数：5

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