Fast crack propagation by surface diffusion

被引：28

作者：

Brener, EA ^{[1
]}

Spatschek, R ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Festkorperforsch, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW E | 2003年 / 67卷 / 01期

关键词：

D O I：

10.1103/PhysRevE.67.016112

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 present a continuum theory which describes the fast growth of a crack by surface diffusion. This mechanism overcomes the usual cusp singularity by a self-consistent selection of the crack tip radius. It predicts the saturation of the steady state crack velocity appreciably below the Rayleigh speed and tip blunting. Furthermore, it includes the possibility of a tip splitting instability for high applied tensions.

引用

页数：5

共 22 条

[1] Continuum field description of crack propagation [J].

Aranson, IS ;

Kalatsky, VA ;

Vinokur, VM .

PHYSICAL REVIEW LETTERS, 2000, 85 (01) :118-121

[2] INTERFACE MORPHOLOGY DEVELOPMENT DURING STRESS-CORROSION CRACKING .1. VIA SURFACE DIFFUSION [J].

ASARO, RJ ;

TILLER, WA .

METALLURGICAL TRANSACTIONS, 1972, 3 (07) :1789-&

[3] Surface instabilities in cracks [J].

Brener, EA ;

Marchenko, VI .

PHYSICAL REVIEW LETTERS, 1998, 81 (23) :5141-5144

[4] Fracture in mode I using a conserved phase-field model [J].

Eastgate, LO ;

Sethna, JP ;

Rauscher, M ;

Cretegny, T ;

Chen, CS ;

Myers, CR .

PHYSICAL REVIEW E, 2002, 65 (03) :1-036117

[5] Instability in dynamic fracture [J].

Fineberg, J ;

Marder, M .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1999, 313 (1-2) :1-108

[6]

Freund L. B., 1990, DYNAMIC FRACTURE MEC

[7] TEMPERATURE RISE AT TIP OF FAST-MOVING CRACKS IN GLASSY POLYMERS [J].

FULLER, KNG ;

FOX, PG ;

FIELD, JE .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1975, 341 (1627) :537-&

[8] Friction and fracture [J].

Gerde, E ;

Marder, M .

NATURE, 2001, 413 (6853) :285-288

[9]

Grinfel'd M. A., 1986, Soviet Physics - Doklady, V31, P831

[10] Cracks: More than just a clean break [J].

Hellemans, A .

SCIENCE, 1998, 281 (5379) :943-944

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