On failure modes and strength characterization of brittle disordered materials under uniaxial compression and tension

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	On failure modes and strength characterization of brittle disordered materials under uniaxial compression and tension
	Tang CA(唐春安); Lin P; Liu HY(刘红元)
刊名	Key Engineering Materials
	2000
卷号	183-187 期号:Fracture and Strength of Solids IV 页码:637-642
ISSN号	1013-9826
通讯作者	Tang, CA (reprint author), Northeastern Univ, Resources & Civil Engn Sch, CRISR, Shenyang 110006, Peoples R China.
合作状况	国内
中文摘要	With a newly developed Material Failure Process Analysis code (MFPA(2D)), influence of hetero geneity on fracture processes and strength characterization of brittle disorder materials such as rock or concrete is numerically studied under uniaxial compression and tension conditions. It is found th at, due to the heterogeneity of the disordered material, relatively more diffused micro-fractures appear in the early stage of loading. Different from homogeneous materials such as glass, macro-crack nucleation starts well before the peak stress is reached and the crack propagation and coalescence can be traced, which can be taken as a precursory to predict the macro-fracture of the material. The presence of residual strength in the post-peak region and the resemblance in the stress-strain curves between tension and compression are significant results and are found to be dependent on the heterogeneity of the specimens. Examples showing the tentative applications of MFPA(2D) in modeling failure of composite materials and rock or civil engineering problem are also given in this paper.
学科主题	力学
类目[WOS]	Materials Science, Ceramics ; Mechanics ; Materials Science, Characterization & Testing ; Materials Science, Composites
研究领域[WOS]	Materials Science ; Mechanics
收录类别	SCI ; EI
原文出处	http://www.scientific.net/KEM.183-187.637
语种	英语
WOS记录号	WOS:000165527800105
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17421]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Tang CA,Lin P,Liu HY. On failure modes and strength characterization of brittle disordered materials under uniaxial compression and tension[J]. Key Engineering Materials,2000,183-187(Fracture and Strength of Solids IV):637-642.
APA	Tang CA,Lin P,&Liu HY.(2000).On failure modes and strength characterization of brittle disordered materials under uniaxial compression and tension.Key Engineering Materials,183-187(Fracture and Strength of Solids IV),637-642.
MLA	Tang CA,et al."On failure modes and strength characterization of brittle disordered materials under uniaxial compression and tension".Key Engineering Materials 183-187.Fracture and Strength of Solids IV(2000):637-642.