Path Stability of a Crack with an Eigenstrain

A slightly curved crack with an eigenstrain is considered. Solutions for a slightly curved crack in a linear isotropic material under asymptotic loading as well as for a slightly curved crack in a linear isotropic material with a concentrated force are obtained from perturbation analyses, which are...

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Bibliographic Details
Published inJournal of mechanical science and technology Vol. 20; no. 9; pp. 1428 - 1435
Main Authors Beom, Hyeon-Gyu, Kim, Yu-Hwan, Cho, Chong-Du, Kim, Chang-Boo
Format Journal Article
LanguageKorean
Published 2006
Subjects
Eigenstrain
Curved Crack
Crack Path Stability
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Summary:A slightly curved crack with an eigenstrain is considered. Solutions for a slightly curved crack in a linear isotropic material under asymptotic loading as well as for a slightly curved crack in a linear isotropic material with a concentrated force are obtained from perturbation analyses, which are accurate to the first order of the parameter representing the non-straightness. Stress intensity factors for a slightly curved crack with an eigenstrain are obtained from the perturbation solutions by using a body force analogy. Particular attention is given to the crack path stability under mode I loading. A new parameter of crack path stability is proposed for a crack with an eigenstrain. The path stability of a crack with steady state growth in a transforming material and a ferroelectric material is examined.
Bibliography:KISTI1.1003/JNL.JAKO200634741561375
ISSN:1738-494X
1976-3824