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Energy criterion for strength of rock in polyaxial compression
It is generally accepted that strength of rock is determined by presence of flaws, usually known as Griffith cracks; however, various criteria based on this and other concepts fail to describe adequately strength of rock under general system of polyaxial compressive stresses; in this paper new criterion is proposed, based on additional energy stored around Griffith cracks due to sliding of crack surfaces over each other; predictions of strength based on this concept are in general agreement with acknowledged behavior of rock under uniaxial and triaxial stress systems. (18903)
Energy criterion for strength of rock in polyaxial compression
It is generally accepted that strength of rock is determined by presence of flaws, usually known as Griffith cracks; however, various criteria based on this and other concepts fail to describe adequately strength of rock under general system of polyaxial compressive stresses; in this paper new criterion is proposed, based on additional energy stored around Griffith cracks due to sliding of crack surfaces over each other; predictions of strength based on this concept are in general agreement with acknowledged behavior of rock under uniaxial and triaxial stress systems. (18903)
Energy criterion for strength of rock in polyaxial compression
Int J Rock Mech Mining Sci
Wiebols, G.A. (author) / Cook, N.G.W. (author)
1968
21 pages
Article (Journal)
English
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