MECHANISM OF TIME-DELAYED FRACTURES

被引：15

作者：

GOLUBOVIC, L

PEREDERA, A

机构：

[1] Department of Physics, West Virginia University, Morgantown

来源：

PHYSICAL REVIEW E | 1995年 / 51卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.51.2799

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We use atomistic Monte Carlo simulations to reexamine competing theories of fracture nucleation in solids under weak external stresses. We argue that the energy of the critical Griffith crack is not the actual barrier for thermal fracture nucleation in brittle solids as frequently assumed. The nucleation is dominated by the activation of vacancy clusters and not of microcracks, as assumed in the conventional theory of fracture nucleation. © 1995 The American Physical Society.

引用

页码：2799 / 2804

页数：6

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