Mohr-Coulomb yield criterion in rock plastic mechanics

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质科学院地质力学研究所

	Mohr-Coulomb yield criterion in rock plastic mechanics
	Wang Hong-Cai 3; Zhao Wei-Hua ; Sun Dong-Sheng ; Guo Bin-Bin
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2012
卷号	55 期号:12 页码:4231-4238
关键词	Plastic deformation of rock Mohr-Coulomb yield criterion Elastic and plastic parameters Isotropic hardening or softening rule Four-line model
ISSN号	065LD
英文摘要	Conventional Mohr-Coulomb strength criterion only describing the relationship between normal stress and shear stress on the failure surface at the peak strength is used as a criterion to determine whether the rock has failed. This study expands the concept of the Mohr-Coulomb strength criterion by suggesting that the Mohr-Coulomb yield criterion can express the stress relationship of strain and stress of failure surface under various stress states after plastic deformation occurs. Based on the experimental study, an experiment approach which employs triaxial compression testing data to determine plastic parameters c and phi which vary with the internal variable kappa was established, and parameter expression used to assess the accuracy of isotropic modeling and some testing results were given. The Mohr-Coulomb yield criterion of isotropic hardening or softening, in which stress-strain curves of whole process is simplified into a four-line model using initial, peak and remnant parameters of rock, is more applicable than the trilinear model by Toshikazu. The result in this study provides theoretical and experimental basis for engineering and geological numerical simulation, thus being of instructive importance.
学科主题	工程地质学
WOS关键词	TRIAXIAL COMPRESSION ; STRENGTH
WOS研究方向	Geochemistry & Geophysics
语种	中文
WOS记录号	WOS:000313148900033
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39875]
专题	中国地质科学院地质力学研究所
作者单位	1.Minist Land & Resources, Key Lab Neotecton Movement & Geohazard, Beijing 100081, Peoples R China. 2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China. 3.中国地质科学院地质力学研究所
推荐引用方式 GB/T 7714	Wang Hong-Cai,Zhao Wei-Hua,Sun Dong-Sheng,et al. Mohr-Coulomb yield criterion in rock plastic mechanics[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(12):4231-4238.
APA	Wang Hong-Cai,Zhao Wei-Hua,Sun Dong-Sheng,&Guo Bin-Bin.(2012).Mohr-Coulomb yield criterion in rock plastic mechanics.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(12),4231-4238.
MLA	Wang Hong-Cai,et al."Mohr-Coulomb yield criterion in rock plastic mechanics".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.12(2012):4231-4238.