中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Multiscale shear fracture of heterogeneous material using the virtual internal bond

文献类型:期刊论文

作者Ge, X. R.; Zhang, Z. N.
刊名THEORETICAL AND APPLIED FRACTURE MECHANICS
出版日期2007
卷号47期号:3页码:185-191
关键词Heterogeneity Multiscale Numerical Method Shear Fracture Virtual Multidimensional Internal Bond
ISSN号0167-8442
DOI10.1016/j.tafmec.2007.01.001
英文摘要

Material behavior entails multiscaling. The macro response of materials is affected by the microstructure. The method of VMIB (virtual multidimensional internal bond) developed from the VIB (virtual internal bond) for the continuum consists of discrete microscopic mass particles. These mass particles are connected with virtual bond possessing both normal and shear stiffness. The macro constitutive relation is derived in terms of bond stiffness. Shear fracture simulation of heterogeneous material involves introducing heterogeneity into the constitutive relation by two ways. First, heterogeneous material may consist of micro components with different stiffness. This character represented by the bond stiffness is assumed to be randomly distributed. Second, the micro components composed of the heterogeneity may possess the same stiffness, but their critical deformation, say the strain strength, may be different. This character represented by the strain strength is assumed to be randomly distributed. For a given statistical distribution function, the bond stiffness and the strain strength can be generated in numerical simulation implementation. Using VMIB, the macro response of materials is determined by the evolution of bond at the microscopic scale. To reflect micro mechanism of shear fracture, a phenomenological bond evolution function is proposed such that the shear fracture process of heterogeneous material is simulated. The results demonstrate that the present method can represent the shear fracture process and the basic characteristics of shear fracture of heterogeneous material. (c) 2007 Elsevier Ltd. All rights reserved.

WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:000245968300001
出版者ELSEVIER SCIENCE BV
源URL[http://119.78.100.198/handle/2S6PX9GI/3166]  
专题岩土力学所知识全产出_期刊论文
作者单位Shanghai Univ, Dept Civil Engna; Shanghai Univ, Shanghai Inst Appl Math & Mech; Chinese Acad Sci, Inst Rock & Soil Mech, Key Lab Rock & Soil Mech; Shanghai Jiao Tong Univ, Inst Geotech Engn
推荐引用方式
GB/T 7714
Ge, X. R.,Zhang, Z. N.. Multiscale shear fracture of heterogeneous material using the virtual internal bond[J]. THEORETICAL AND APPLIED FRACTURE MECHANICS,2007,47(3):185-191.
APA Ge, X. R.,&Zhang, Z. N..(2007).Multiscale shear fracture of heterogeneous material using the virtual internal bond.THEORETICAL AND APPLIED FRACTURE MECHANICS,47(3),185-191.
MLA Ge, X. R.,et al."Multiscale shear fracture of heterogeneous material using the virtual internal bond".THEORETICAL AND APPLIED FRACTURE MECHANICS 47.3(2007):185-191.

入库方式: OAI收割

来源:武汉岩土力学研究所

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