Interactions of two coplanar elliptical cracks embedded in finite thickness plates under uniform tension

This paper includes the analysis of the interactions of two coplanar elliptical cracks, with equal or different crack sizes, embedded in finite thickness plates under uniform tension. The ratios of crack depth to crack length ( b 1 a 1 , and b 2 a 2 ) are 0.25 and 1.0; the relative distances between...

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Bibliographic Details
Published in:Engineering fracture mechanics 1996, Vol.53 (2), p.179-191
Main Authors: Guozhong, Chat, Kangda, Zhang, Dongdi, Wu
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fracture mechanics, fatigue and cracks
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
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Summary:This paper includes the analysis of the interactions of two coplanar elliptical cracks, with equal or different crack sizes, embedded in finite thickness plates under uniform tension. The ratios of crack depth to crack length ( b 1 a 1 , and b 2 a 2 ) are 0.25 and 1.0; the relative distances between two cracks ( s 1 b min and s 2 b min ) range from 0.5 to 2.0. Two kinds of interactions, interactions 1 and 2, with a total of 42 crack configurations, are studied and the stress intensity factors along the crack front are presented. The numerical results show that interaction 2 has a stronger interaction than interaction 1. The numerical analyses are carried out by the hybrid boundary element method.
ISSN:0013-7944
1873-7315
DOI:10.1016/0013-7944(95)00051-8