Analysis of the Three-Dimensional Zone around the Interfacial Crack Tip: The K-Influence Domain Range in the Plane Stress State

The bimaterial sample was analyzed to determine the three-dimensional zone at the interface crack tip and the field in the plane stress state. The solutions for the complete 3D field in different zones around the crack tip were approximated by the plane stress and plane strain states' asymptoti...

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Bibliographic Details
Published in:Key engineering materials 2017-09, Vol.754, p.119-122
Main Authors: Nikolić, Ružica R., Djoković, Jelena M., Vulović, Snežana D., Hadzima, Branislav, Živković, Miroslav M.
Format: Article
Language:English
Subjects:
Asymptotic methods
Crack tips
Interfacial cracks
Plane strain
Plane stress
Stress intensity factors
Stress state
Three dimensional analysis
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Summary:The bimaterial sample was analyzed to determine the three-dimensional zone at the interface crack tip and the field in the plane stress state. The solutions for the complete 3D field in different zones around the crack tip were approximated by the plane stress and plane strain states' asymptotic solutions. The difference between the solutions for the plane stress and plane strain states is defined by the three variables. The established relationship between the far field and the field around the crack tip in the plane strain conditions, enables relating the measured experimental results of the stress intensity factor to results for the stress intensity factor for the field around the crack tip, which represent the more relevant parameter for formulating the fracture criterion.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.754.119