Elastic forces that do no work and the dynamics of fast cracks

被引：14

作者：

Lund, F

机构：

[1] Departamento de Fýsica, Facultad de Ciencias Fýsicas y Matemáticas, Universidad de Chile, Santiago, 487-3, Casilla

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.76.2742

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Elastic singularities such as crack tips, when in motion through a medium that is itself vibrating, are subject to forces orthogonal to the direction of motion and thus impossible to determine by energy considerations alone. This fact is used to propose a universal scenario, in which three dimensionality is essential, for the dynamic instability of fast cracks in thin brittle materials.

引用

页码：2742 / 2745

页数：4

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