Interaction of moving interface collinear Griffith cracks under antiplane shear

被引：18

作者：

Das, S. ^{[1
]}

机构：

[1] BP Poddar Inst Management & Technol, Kolkata 700052, W Bengal, India

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2006年 / 43卷 / 25-26期

关键词：

moving Griffith crack; interface; antiplane shear stress; integral transform; integral equation; stress intensity factors; stress intensity magnification factors; interaction;

D O I：

10.1016/j.ijsolstr.2006.04.001

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The interaction between three moving collinear Griffith cracks under antiplane shear stress situated at the interface of an elastic layer overlying a different half plane has been studied. Fourier transform and finite Hilbert transform techniques have been employed to solve the problem. Approximate analytical expressions for stress intensity factors at the crack tips have been derived for large thickness of the elastic layer. Numerical results connected to the interaction effect have also been obtained. Depending on the spacing of the cracks, their common velocity of propagation and the depth of the layer, occurrence of shielding and amplification phenomena of the cracks have been noticed. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：7880 / 7890

页数：11

共 16 条

[1] ELASTIC WAVE SCATTERING FROM AN INTERFACE CRACK - ANTIPLANE STRAIN [J].

BOSTROM, A .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1987, 54 (03) :503-508

[2] Interaction of a main crack with ordered distributions of microcracks: A numerical technique by displacement discontinuity boundary elements [J].

Brencich, A ;

Carpinteri, A .

INTERNATIONAL JOURNAL OF FRACTURE, 1996, 76 (04) :373-389

[3]

COOKE JC, 1968, GLASGOW MATH J, V11, P9

[4] 2 COPLANAR GRIFFITH CRACKS MOVING ALONG THE INTERFACE OF 2 DISSIMILAR ELASTIC MEDIA [J].

DAS, AN ;

GHOSH, ML .

ENGINEERING FRACTURE MECHANICS, 1992, 41 (01) :59-69

[5]

Das S., 2003, International Journal of Applied Mechanics and Engineering, V8, P167

[6]

DAS S, 1996, APPL MECH ENG, V3, P249

[7] A MOVING GRIFFITH CRACK AT THE INTERFACE OF 2 DISSIMILAR ELASTIC LAYERS [J].

DHALIWAL, RS ;

HE, WH ;

SAXENA, HS ;

ROKNE, JG .

ENGINEERING FRACTURE MECHANICS, 1992, 43 (06) :923-930

[8] ANTIPLANAR SHEAR PROBLEM FOR A CRACK BETWEEN DISSIMILAR NONHOMOGENEOUS ISOTROPIC ELASTIC LAYERS [J].

DHALIWAL, RS ;

SAXENA, HS ;

ROKNE, JG .

ENGINEERING FRACTURE MECHANICS, 1992, 42 (04) :653-662

[9] INTERFACE CRACK PROBLEMS IN LAYERED ORTHOTROPIC MATERIALS [J].

ERDOGAN, F ;

WU, BH .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1993, 41 (05) :889-917

[10] INTERACTION BETWEEN MICROCRACKS AND A MAIN CRACK IN A SEMIINFINITE MEDIUM [J].

LAM, KY ;

WEN, C ;

TAO, Z .

ENGINEERING FRACTURE MECHANICS, 1993, 44 (05) :753-761

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