The Multi-Virtual Crack Closure Technique for three-dimensional interface crack problems

被引：7
|
作者：
Farkash, Elad [1 ]
Banks-Sills, Leslie [2 ]
机构：
[1] Soreq Nucl Res Ctr, Struct Anal Dept, IL-81800 Yavne, Israel
[2] Tel Aviv Univ, Sch Mech Engn, Dreszer Fracture Mech Lab, IL-6997801 Ramat Aviv, Israel
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2023年 / 128卷
关键词：
Dual energy release rates; Interface crack; Stress intensity factors; Three-dimensional; Transversely isotropic; VCCT; CONSERVATION-LAWS; INTEGRAL-METHOD;
D O I：
10.1016/j.tafmec.2023.104117
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The Virtual Crack Closure Technique (VCCT) is a simple method that was found in the past to produce good results for determining stress intensity factors of cracks in homogeneous bodies and poor results for interface cracks. In recent papers, the VCCT was found to produce excellent results for two-dimensional interface cracks where many elements were used in the virtual crack extension (VCE). This approach is called here the Multi-VCCT. A criterion for the optimal number of elements used in the VCE was also found. Here, the M-VCCT is extended to three-dimensional interface crack problems. Results for three-dimensional problems containing a straight through finite length interface crack and a penny-shaped interface crack are presented. The interfaces include that between two homogeneous and isotropic dissimilar materials, as well as two transversely isotropic materials.
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页数：16
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