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A crack perpendicular to and terminating at a bimaterial interface

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Author

Summary, in English

Using dislocation simulation approach, the basic equation for a finite crack perpendicular to and terminating at a bimaterial interface is formulated. A novel expansion method is proposed for solving the problem. The complete solution to the problem, including the explicit formulae for the T stresses ahead of the crack tip and the stress intensity factors are presented. The stress held characteristics are analysed in detail. It is found that normal stresses sigma(x) and sigma(y) ahead of the crack tip, are characterised by Q fields if the crack is within a stiff material and the parameters \p(T)\ and \q(T)\ are very small, where Q is a generalised stress intensity factor for a crack normal to and terminating at the interface. If the crack is within a weak material, the normal stresses sigma(x) and sigma(y) are dominated by the Q field plus T stress.

Publishing year

1998

Language

English

Pages

27-36

Publication/Series

Acta Mechanica Sinica

Volume

14

Issue

1

Document type

Journal article

Publisher

Springer

Topic

  • Mechanical Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 1614-3116