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	Two-parameter parabolic Mohr strength criterion and its damage regularity
	Li, CG; Ge, XR; Zheng, H; Wang, SL
	2006
会议日期	APR 04-06, 2005
会议地点	Bali, INDONESIA
关键词	two-parameter parabolic Mohr strength criterion Griffith criterion damage pattern rupture angle friction angle strength ratio
DOI	10.4028/www.scientific.net/KEM.306-308.327
页码	327-332
英文摘要	A series of formulas about two-parameter parabolic Mohr strength criterion(2-PP Mohr criterion) are derived. Based on the results of uniaxial tension and uniaxial compression tests, the parameters involved in the criterion can be easily determined, then the criterion in terms of the major principal stress and the minor principal stress is derived, and the damage pattern is also discussed. At last, the formulas about the rupture angle and the friction angle are presented, and their relationship is also given. 2-PP Mohr criterion can describe not only shear but also tensile failure. In this criterion the ratio of the uniaxial compression strength and the uniaxial tension strength is not confined as in Griffith criterion. The formula about the rupture angle provides steady theoretical foundation for determining the direction of crack faces and damage patterns in the computation of macro crack propagation. In fact, Griffith criterion is only a special case of the two-parameter parabolic Mohr strength criterion proposed in this present paper.
会议录	FRACTURE AND STRENGTH OF SOLIDS VI, PTS 1 AND 2
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	ZURICH-UETIKON
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000236852900055
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4422]
专题	岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech, Key Lab Rock & Soil Mech
推荐引用方式 GB/T 7714	Li, CG,Ge, XR,Zheng, H,et al. Two-parameter parabolic Mohr strength criterion and its damage regularity[C]. 见:. Bali, INDONESIA. APR 04-06, 2005.

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