Dynamic interaction between a sub-interface crack and the interface in a bi-material: time-domain BEM analysis

被引：0
|
作者：
Lei, J
Wang, YS [1 ]
Gross, D
机构：
[1] No Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China
[2] Tech Univ Darmstadt, Inst Mech, D-64289 Darmstadt, Germany
来源：
ARCHIVE OF APPLIED MECHANICS | 2003年 / 73卷 / 3-4期
关键词：
dynamic fracture; boundary element method; sub-interface crack; interface; bi-material;
D O I：
10.1007/s00419-003-0281-x
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Transient response of a sub-interface crack in a bi-material is studied with emphasis on the dynamic interaction between the crack and the interface, by combining the traditional time-domain displacement boundary element method (BEM) and the non-hypersingular traction BEM. Computations are performed for an unbounded bi-material with a crack subjected to impact tensile loading on its faces or incident impact waves and a bounded rectangular bi-material plate under remote impact tensile loading. Numerical results of the dynamic stress intensity factors (DSIFs) and dynamic interface tractions are presented for various material combinations and crack locations. It is shown that pronounced increases in DSIFs and the interface tractions may be caused in some cases because of the dynamic interaction between the crack and the interface.
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收藏
页码：225 / 240
页数：16
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