Finite boundary effects in problem of a crack perpendicular to and terminating at a bimaterial interface

Shaohua Chen; Tzuchiang Wang; Sharon Kao-Walter

doi:10.1007/s10409-004-0007-5

Finite boundary effects in problem of a crack perpendicular to and terminating at a bimaterial interface

Shaohua Chen^*, Tzuchiang Wang, Sharon Kao-Walter

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The problem of a crack perpendicular to and terminating at an interface in bimaterial structure with finite boundaries is investigated. The dislocation simulation method and boundary collocation approach are used to derive and solve the basic equations. Two kinds of loading form are considered when the crack lies in a softer or a stiffer material, one is an ideal loading and the other one fits to the practical experiment loading. Complete solutions of the stress field including the T stress are obtained as well as the stress intensity factors. Influences of T stress on the stress field ahead of the crack tip are studied. Finite boundary effects on the stress intensity factors are emphasized. Comparisons with the problem presented by Chen et al. (Int. J. Solids and Structure, 2003, 40, 2731-2755) are discussed also.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Acta Mechanica Sinica/Lixue Xuebao
Volume	21
Issue number	1
DOIs	https://doi.org/10.1007/s10409-004-0007-5
Publication status	Published - Feb 2005
Externally published	Yes

Keywords

Bimaterial structure
Crack
Finite boundary
Stress intensity factor
T stress

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10.1007/s10409-004-0007-5

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abstract = "The problem of a crack perpendicular to and terminating at an interface in bimaterial structure with finite boundaries is investigated. The dislocation simulation method and boundary collocation approach are used to derive and solve the basic equations. Two kinds of loading form are considered when the crack lies in a softer or a stiffer material, one is an ideal loading and the other one fits to the practical experiment loading. Complete solutions of the stress field including the T stress are obtained as well as the stress intensity factors. Influences of T stress on the stress field ahead of the crack tip are studied. Finite boundary effects on the stress intensity factors are emphasized. Comparisons with the problem presented by Chen et al. (Int. J. Solids and Structure, 2003, 40, 2731-2755) are discussed also.",

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AU - Chen, Shaohua

AU - Wang, Tzuchiang

AU - Kao-Walter, Sharon

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N2 - The problem of a crack perpendicular to and terminating at an interface in bimaterial structure with finite boundaries is investigated. The dislocation simulation method and boundary collocation approach are used to derive and solve the basic equations. Two kinds of loading form are considered when the crack lies in a softer or a stiffer material, one is an ideal loading and the other one fits to the practical experiment loading. Complete solutions of the stress field including the T stress are obtained as well as the stress intensity factors. Influences of T stress on the stress field ahead of the crack tip are studied. Finite boundary effects on the stress intensity factors are emphasized. Comparisons with the problem presented by Chen et al. (Int. J. Solids and Structure, 2003, 40, 2731-2755) are discussed also.

AB - The problem of a crack perpendicular to and terminating at an interface in bimaterial structure with finite boundaries is investigated. The dislocation simulation method and boundary collocation approach are used to derive and solve the basic equations. Two kinds of loading form are considered when the crack lies in a softer or a stiffer material, one is an ideal loading and the other one fits to the practical experiment loading. Complete solutions of the stress field including the T stress are obtained as well as the stress intensity factors. Influences of T stress on the stress field ahead of the crack tip are studied. Finite boundary effects on the stress intensity factors are emphasized. Comparisons with the problem presented by Chen et al. (Int. J. Solids and Structure, 2003, 40, 2731-2755) are discussed also.

KW - Bimaterial structure

KW - Crack

KW - Finite boundary

KW - Stress intensity factor

KW - T stress

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Finite boundary effects in problem of a crack perpendicular to and terminating at a bimaterial interface

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Keywords

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