Experimental study on mechanical behavior of brittle marble samples containing different flaws under uniaxial compression

doi:10.1016/j.engfracmech.2009.04.005

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

	Experimental study on mechanical behavior of brittle marble samples containing different flaws under uniaxial compression
	Jin, Z. Q.5; Yang, S. Q.1,2,3; Dai, Y. H.4; Han, L. J.1,2
刊名	ENGINEERING FRACTURE MECHANICS
	2009
卷号	76 期号:12 页码:1833-1845
关键词	Flawed sample Uniaxial compressive strength (UCS) Elastic modulus Crack coalescence Tensile crack Shear crack Compressive crack Failure mode
ISSN号	0013-7944
DOI	10.1016/j.engfracmech.2009.04.005
英文摘要	Uniaxial compression experiments were carried out for the marble samples (located in the eastern ground of China) with different pre-existing flaws in non-overlapping geometry by the rock mechanics servo-controlled testing system. Based on the experimental results of complete axial stress-axial strain curves, the effect of flaw geometry on the strength and deformation behavior of marble samples is made a detailed analysis. Compared with the intact marble sample, the marble samples with different pre-existing flaws show the localization deformation failure. The uniaxial compressive strength (UCS), elastic modulus and peak axial strain of marble samples with pre-existing flaws are all lower than that of intact marble sample, and the reduction extent is closely related to the geometry of pre-existing flaws. The crack coalescence were observed and characterized from internal tips of different pre-existing flaws in brittle marble sample. Eight different crack types were identified based on their geometry and crack propagation mechanism (tensile, shear and compressive) for two pre-existing flaws, which can be used to analyze the failure mode and cracking process of marble sample containing different flaws in uniaxial compression. in the end, the influence of the crack coalescence on the strength and deformation failure behavior of brittle marble sample is analyzed under uniaxial compression. The present research provides increased understanding of the fundamental nature of rock failure under uniaxial compression. (C) 2009 Elsevier Ltd. All rights reserved.
WOS研究方向	Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000268527300007
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3214]
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	1.China Univ Min & Technol, State Key Lab Geomech & Deep Underground Engn; 2.China Univ Min & Technol, Sch Architecture & Civil Engn; 3.Ecole Polytech Paris, Mecan Solides Lab; 4.Chinese Acad Sci, Inst Rock & Soil Mech, Key Lab Rock & Soil Mech; 5.Qingdao Technol Univ, Coll Civil Engn
推荐引用方式 GB/T 7714	Jin, Z. Q.,Yang, S. Q.,Dai, Y. H.,et al. Experimental study on mechanical behavior of brittle marble samples containing different flaws under uniaxial compression[J]. ENGINEERING FRACTURE MECHANICS,2009,76(12):1833-1845.
APA	Jin, Z. Q.,Yang, S. Q.,Dai, Y. H.,&Han, L. J..(2009).Experimental study on mechanical behavior of brittle marble samples containing different flaws under uniaxial compression.ENGINEERING FRACTURE MECHANICS,76(12),1833-1845.
MLA	Jin, Z. Q.,et al."Experimental study on mechanical behavior of brittle marble samples containing different flaws under uniaxial compression".ENGINEERING FRACTURE MECHANICS 76.12(2009):1833-1845.