Improvement of Interactive Crack Extension Analysis-Homogenized Crack Propagation in Rock (3rd report)-
نویسندگان
چکیده
منابع مشابه
Identifying crack initiation and propagation thresholds in brittle rock
Recent work at the Underground Research Laboratory of Atomic Energy of Canada Limited in Pinawa, Manitoba, has shown that high compressive stresses near the tunnel face significantly contribute to the loss of strength, and eventual failure of the rock, through stress-induced brittle fracturing. A program of laboratory testing has been undertaken to investigate the effects of brittle fracture on...
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In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions of the pre-existing micro-cracks, which can grow and propagate within a rock-like specimen. The ...
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Modeling of crack propagation by a finite element method under mixed mode conditions is of prime importance in the fracture mechanics. This article describes an application of finite element method to the analysis of mixed mode crack growth in linear elastic fracture mechanics. Crack - growth process is simulated by an incremental crack-extension analysis based on the maximum principal stress c...
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ژورنال
عنوان ژورنال: Journal of MMIJ
سال: 2007
ISSN: 1881-6118,1884-0450
DOI: 10.2473/journalofmmij.123.435