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Title	NEW BIAXIAL FAILURE CRITERION FOR BRITTLE MATERIALS IN COMPRESSION
Accession No	00779629
Authors	Zhu, Z
Journal Title	Journal of Engineering Mechanics Vol. 125 No. 11
Corp. Authors / Publisher	American Society of Civil Engineers
Publication Date	19991100
Description	p. 1251-58; Appendices(2); Figures(8); References(28); Tables(2)
Languages	English
Abstract	This paper focuses on the relationship of the stress intensity factor (SIF) between biaxial compression (K sub II) and uniaxial compression (K sub IIO). This relationship is very important for the study of biaxial failure criterion, because if this relationship can be found, the biaxial failure criterion can be easily set up by use of the uniaxial failure criterion, which is very simple (K sub IIO is less than or equal to K sub IIC or sigma is less than or equal to sigma sub C). For this purpose, a new model for a brittle material plate containing an inclined crack in compression, based on the theoretical analysis and the calculated results of the boundary collocation method (BCM), is proposed. By using this model and the BCM results, the following topics are first discussed: the orientation of the most unfavorable crack and the stress condition for a crack with zero SIF value. Second, the relationship between K sub II and K sub IIO is found and described in a simple formula. Finally, a new biaxial failure criterion, which is expressed in terms of the principal stresses, is developed; and several conclusions are presented.
TRT Terms	Biaxial stress ; Brittleness ; Compression ; Cracking ; Failure ; Mathematical models ; Rock mechanics ; Uniaxial stress
Other Terms	Stress intensity factor
Subject Areas	H63 MECHANICS (EARTH MASS); I43 Rock Mechanics
Contract Number	N00014-94-1-0036; N00014-90-C-0031; F49620-95-1-0342
Availability	American Society of Civil Engineers Find a library where document is available Order Document: http://worldcat.org/issn/07339399
TRIS Files	HRIS
Database	TRIS Online

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