Research on the failure process of rocks under tensile loading using elasto-plastic CA model

doi:10.4028/www.scientific.net/KEM.340-341.1145

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 > 会议论文

	Research on the failure process of rocks under tensile loading using elasto-plastic CA model
	Feng, Xia-Ting; Pan, Peng-Zhi; Zhou, Hui
	2007
会议日期	SEP 25-29, 2006
会议地点	Nagoya Univ, Nagoya, JAPAN
关键词	elasto-plastic cellular automata rock failure process tensile loading three-point bending notched Brazilian disc
DOI	10.4028/www.scientific.net/KEM.340-341.1145
页码	1145
英文摘要	A series of numerical experiments are conducted by the Elasto-Plastic CA model, which was successfully used to simulate the rock failure process under uniaxial compression in previous work by the authors, to obtain the failure processes of heterogeneous rocks as well as the stress-strain relation and strain-AE relation under tensile loading at meso level. The model can consider the heterogeneity of the materials conveniently, and has the advantages of localization, parallelization etc. By constructing some local simple rules, the model can perfectly simulate the self-organization process of rock failure process. In this paper, the domain is discretized into the system composed of cell elements which are assumed to conform to the constitutive laws of elasto-brittle-plasticity. The Weibull's stochastic distribution is introduced to represent the heterogeneity of rock materials, and Mohr-Columb criterion with tension cut-off is considered as the yield criterion. The process of crack initiation, propagation and coalescence is well simulated and the results obtained reproduce the main features known of rock behavior, both at meso and overall stress-strain levels.
会议录	ENGINEERING PLASTICITY AND ITS APPLICATIONS FROM NANOSCALE TO MACROSCALE, PTS 1 AND 2
会议录出版者	TRANS TECH PUBLICATIONS LTD
会议录出版地	DURNTEN-ZURICH
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000246642100184
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4445]
专题	岩土力学所知识全产出_会议论文岩土力学所知识全产出
作者单位	Chinese Acad Sci, Inst Rock & Soil Mech
推荐引用方式 GB/T 7714	Feng, Xia-Ting,Pan, Peng-Zhi,Zhou, Hui. Research on the failure process of rocks under tensile loading using elasto-plastic CA model[C]. 见:. Nagoya Univ, Nagoya, JAPAN. SEP 25-29, 2006.