收稿日期: 2015-05-11
网络出版日期: 2016-10-31
基金资助
国家自然科学基金资助项目(11272195, 11332005)
Dual boundary integral equations and numerical solutions for particles and cracks in full space
Received date: 2015-05-11
Online published: 2016-10-31
马杭1, 潘蒙2 . 全空间中粒子和裂纹的对偶边界积分方程及数值解[J]. 上海大学学报(自然科学版), 2016 , 22(5) : 533 -544 . DOI: 10.3969/j.issn.1007-2861.2015.02.020
As elastic solids contain particles and cracks, a computational model is proposed for the analysis of particles and cracks in full space using dual boundary integral equations in the displacement discontinuity formulation. The method avoids the difficulty of loading the objects under study in full space. Numerical analysis is carried out for some typical cases with a few particles and cracks using a discrete form of boundary integral equations. A boundary point method and Gauss collocation are used for discretization of the particle boundary or interface, and the crack surface, respectively. The stress intensity factors of cracks are computed. Mutual effects between particles and cracks are investigated and compared with those in the literature, verifying correctness and reliability of the proposed computational model and the program.
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