DOI: 10.1002/2015GL065457
论文题名: Paul-Mohr-Coulomb failure surface of rock in the brittle regime
作者: Makhnenko R.Y. ; Harvieux J. ; Labuz J.F.
刊名: Geophysical Research Letters
ISSN: 0094-9525
EISSN: 1944-9256
出版年: 2015
卷: 42, 期: 17 起始页码: 6975
结束页码: 6981
语种: 英语
英文关键词: failure criterion
; intermediate stress effect
; plane strain test
; rock mechanics
; triaxial compression test
; triaxial extension test
Scopus关键词: Compression testing
; Failure (mechanical)
; Friction
; Rocks
; Strain
; Stresses
; Tensile strength
; Tribology
; Failure criteria
; Intermediate stress
; Plane-strain test
; Tri-axial compression tests
; Triaxial extension tests
; Rock mechanics
; brittle failure
; compression
; Coulomb criterion
; failure analysis
; friction
; isotropy
; Mohr theory
; rock mechanics
; tensile strength
; triaxial test
英文摘要: The Paul-Mohr-Coulomb failure criterion includes the intermediate principal stress σII and friction angles at the limiting stress states of σII = σIII and σII = σI, where σI and σIII are major and minor principal stresses. Conventional triaxial compression (σII = σIII), extension (σII = σI), and plane strain (σI ≠ σII ≠ σIII) experiments were performed on dry rock. The failure data were plotted in principal stress space, and material parameters were determined in the context of two internal friction angles and the theoretical uniform triaxial (all-around equal) tensile strength. Assuming isotropy, the triaxial compression and extension results were used to construct a six-sided pyramidal failure surface, and the extension friction angle was larger than the compression friction angle, a sufficient but not necessary condition of the intermediate stress effect. To capture the behavior of the rock in multiaxial loading, the Paul-Mohr-Coulomb criterion was extended to form a 12-sided pyramid with best fit planes. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943254997&doi=10.1002%2f2015GL065457&partnerID=40&md5=1f48198bc0cdc5a543e81c14fb7b9e60
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9140
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Civil Environmental, and Geo-Engineering, University of Minnesota, Twin Cities, Minneapolis, MN, United States
Recommended Citation:
Makhnenko R.Y.,Harvieux J.,Labuz J.F.. Paul-Mohr-Coulomb failure surface of rock in the brittle regime[J]. Geophysical Research Letters,2015-01-01,42(17).