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题名:
3D modeling of crack growth in electro-magneto-thermo-elastic coupled viscoplastic multiphase composites
作者: Zhu BJ(朱伯靖)1,2; Qin Taiyan1
刊名: APPLIED MATHEMATICAL MODELLING
出版日期: 2009-02
卷号: 33, 期号:2, 页码:1014-1041
DOI: 10.1016/j.apm.2007.12.024
学科分类: 力学 ; 力学::物理力学
收录类别: SCI
通讯作者: Zhu BJ(朱伯靖), Email: cynosureorion@gucas.ac.cn ; Qin Taiyan, Email: tyqin@cau.edu.cn
关键词: Electro-magneto-thermo-elastic coupled viscoplastic multiphase composites ; Three-dimensional crack ; Time-domain hypersingular integral equation ; Extended incremental integral ; Boundary element method
英文摘要: This work presents a time-domain hypersingular integral equation (TD-HIE) method for modeling 3D crack growth in electro-magneto-thermo-elastic coupled viscoplastic multiphase composites (EMTE-CVP-MCs) under extended incremental loads rate through intricate theoretical analysis and numerical simulations. Using Green's functions, the extended general incremental displacement rate solutions are obtained by time-domain boundary element method. Three-dimensional arbitrary crack growth problem in EMTE-CVP-MCs is reduced to solving a set of TD-HIEs coupled with boundary integral equations, in which the unknown functions are the extended incremental displacement discontinuities gradient. Then, the behavior of the extended incremental displacement discontinuities gradient around the crack front terminating at the interface is analyzed by the time-domain main-part analysis method of TD-HIE. Also, analytical solutions of the extended singular incremental stresses gradient and extended incremental integral near the crack fronts in EMTE-CVP-MCs are provided. In addition, a numerical method of the TD-HIE for a 3D crack subjected to extended incremental loads rate is put forward with the extended incremental displacement discontinuities gradient approximated by the product of time-domain basic density functions and polynomials. Finally, examples are presented to demonstrate the application of the proposed method. 
语种: 英语
原文出处: 查看原文
ISSN号: 0307-904X
文章类型: Article
研究领域[WOS]: Engineering ; Mathematics ; Mechanics
类目[WOS]: Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics
关键词[WOS]: BOUNDARY-ELEMENT METHOD ; DEPENDENT INELASTIC DEFORMATION ; INTEGRAL-EQUATION METHOD ; DISPLACEMENT DISCONTINUITY METHOD ; INCREMENTAL NONLINEAR ELASTICITY ; 3-DIMENSIONAL CRACK ; SHEAR BANDS ; PIEZOELECTRIC MATERIALS ; ELASTOPLASTIC ANALYSIS ; NUMERICAL-ANALYSIS
WOS记录号: WOS:000261301400029
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ynao.ac.cn/handle/114a53/12326
Appears in Collections:非本单位_期刊论文

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作者单位: 1.College of Science, China Agriculture University, Beijing 100083, PR China
2.College of Earth Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049, PR China

Recommended Citation:
Zhu BJ,Qin Taiyan. 3D modeling of crack growth in electro-magneto-thermo-elastic coupled viscoplastic multiphase composites[J]. APPLIED MATHEMATICAL MODELLING,2009,33(2):1014-1041.
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