Second-order variation in elastic fields of a tensile planar crack with a curved front

被引：24

作者：

Adda-Bedia, M

Katzav, E

Vandembroucq, D

机构：

[1] Ecole Normale Super, Phys Stat Lab, F-75231 Paris 05, France

[2] CNRS, Unite Mixte Rech St Gobain, Surface Verre & Interfaces, F-93303 Aubervilliers, France

来源：

PHYSICAL REVIEW E | 2006年 / 73卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.73.035106

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 derive the second-order variation in the local static stress intensity factor of a tensile crack with a curved front. We then discuss the relevance of this result to the stability analysis of such fronts, and propose an equation of motion of planar crack fronts in heterogeneous media that contains two main ingredients-irreversibility of the propagation of the crack front and nonlinear effects.

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页数：4

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