Calculation of stress intensity factor using weight function method for a patched crack

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A center-cracked prate with a patch bonded on one side is treated with a crack-bridging model: assuming continuous distribution of springs acting between crack surfaces. Adopting weight function method, the stress intensity factor for the patched crack within infinite plate is successfully obtained by numerical calculation. When the crack length a is very small, the reduction in stress intensity factor was mainly due to the stress reduction from sigma (infinity) to sigma (0) which was calculated in the case of uncracked plate. As the crack length a increases, the restraint on the relative displacement of the crack faces for a given value sigma (0) became increased. The constant relative displacement (or crack surface displacement) did explain the reason for the constant stress intensity factors being independent to the crack length.
Publisher
TRANS TECH PUBLICATIONS LTD
Issue Date
2000
Language
English
Article Type
Article; Proceedings Paper
Citation

FRACTURE AND STRENGTH OF SOLIDS, PTS 1 AND 2, v.183-1, pp.103 - 108

ISSN
1013-9826
URI
http://hdl.handle.net/10203/67885
Appears in Collection
ME-Journal Papers(저널논문)
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