Evolution of the shape parameter in the Weibull distribution for brittle rocks under uniaxial compression

doi:10.1007/s12517-018-3689-x

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院页岩气与地质工程重点实验室

	Evolution of the shape parameter in the Weibull distribution for brittle rocks under uniaxial compression
	Yang, Baicun 1,2,3; Xue, Lei 1,2,3; Wang, Miaomiao 4
刊名	ARABIAN JOURNAL OF GEOSCIENCES
	2018-06-01
卷号	11 期号:12 页码:7
关键词	Weibull distribution Damage variable Volume expansion point Peak strength point
ISSN号	1866-7511
DOI	10.1007/s12517-018-3689-x
英文摘要	Applying the statistical damage theory based on the Weibull distribution to describe rock deformation and failure processes is an important development in rock mechanics. The shape parameter of the Weibull distribution, m, determines the basic shape of the distribution curve; additionally, it also represents a physical characteristic which can be applied when constructing rock constitutive models. To study the evolution of m during rock failure when applying the Weibull distribution to rock mechanics, uniaxial cyclic loading tests of shale specimens were conducted and previous rock mechanics experiments under different temperatures and loading rates were reviewed. The results indicate that m varied with the accumulation of damage but was almost constant between the volume expansion point and the peak strength point of each specimen. Combined with previous studies about the accelerated failure behavior of rocks, we conclude that between the volume expansion point and the peak strength point, the mechanical behavior of the rock fracture process did not change significantly. Based on the characteristics of m at different damage stages during the rock failure process, ranges of m values at different damage stages are proposed. The conclusions reached in this study may be used as an important reference for theoretical research on rock mechanics.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030302] ; National Natural Science Foundation of China[U1704243] ; National Natural Science Foundation of China[41572311]
WOS关键词	DAMAGE ; FRACTURE ; MODEL ; FAILURE ; STRENGTH ; BEHAVIOR ; SHALE ; STATISTICS ; SIMULATION ; STRESS
WOS研究方向	Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000436082400010
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88169]
专题	地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者	Yang, Baicun; Xue, Lei
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Yang, Baicun,Xue, Lei,Wang, Miaomiao. Evolution of the shape parameter in the Weibull distribution for brittle rocks under uniaxial compression[J]. ARABIAN JOURNAL OF GEOSCIENCES,2018,11(12):7.
APA	Yang, Baicun,Xue, Lei,&Wang, Miaomiao.(2018).Evolution of the shape parameter in the Weibull distribution for brittle rocks under uniaxial compression.ARABIAN JOURNAL OF GEOSCIENCES,11(12),7.
MLA	Yang, Baicun,et al."Evolution of the shape parameter in the Weibull distribution for brittle rocks under uniaxial compression".ARABIAN JOURNAL OF GEOSCIENCES 11.12(2018):7.