Effect of precrack length and inclination on tensile failure behaviour of heterogeneous rocks

doi:10.1179/143307511X12858957676678

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Effect of precrack length and inclination on tensile failure behaviour of heterogeneous rocks
	Pan, P. -Z.; Qiu, S. -L.; Shen, L. -F.; Feng, X. -T.; Zhou, H.
刊名	MATERIALS RESEARCH INNOVATIONS
	2011
卷号	15 页码:S557-S560
关键词	Rock failure process Elastoplastic cellular automaton Crack propagation Uniaxial tension Tensile strength Crack inclination and length
ISSN号	1432-8917
DOI	10.1179/143307511X12858957676678
英文摘要	The failure behaviour of heterogeneous rock specimens with prefabricated single crack under direct tensile loading is investigated numerically by using an elastoplastic cellular automaton (EPCA 2D) model. The response of tensile failure behaviour of heterogeneous rocks is investigated when different crack lengths and inclinations are used. The results confirm that the tensile strength of rock specimens presents a tendency of reduction with the increment of crack length at same fixed crack inclination. However, this reduction changes non-monotonically due to the heterogeneity of rocks. Only the precrack is longer enough can it be the main factor of rock failure. With the same crack length, but different crack inclinations, the tensile strength increases with the increment of crack inclination. With the increment of the angle between precrack and tensile loading direction, the effect of the precrack on tensile failure behaviour of rock decreases.
WOS研究方向	Materials Science
语种	英语
出版者	MANEY PUBLISHING
WOS记录号	WOS:000288859000136
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3265]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech
推荐引用方式 GB/T 7714	Pan, P. -Z.,Qiu, S. -L.,Shen, L. -F.,et al. Effect of precrack length and inclination on tensile failure behaviour of heterogeneous rocks[J]. MATERIALS RESEARCH INNOVATIONS,2011,15:S557-S560.
APA	Pan, P. -Z.,Qiu, S. -L.,Shen, L. -F.,Feng, X. -T.,&Zhou, H..(2011).Effect of precrack length and inclination on tensile failure behaviour of heterogeneous rocks.MATERIALS RESEARCH INNOVATIONS,15,S557-S560.
MLA	Pan, P. -Z.,et al."Effect of precrack length and inclination on tensile failure behaviour of heterogeneous rocks".MATERIALS RESEARCH INNOVATIONS 15(2011):S557-S560.