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On the numerical evaluation of stress intensity factors for an interface crack of a general shape
Author(s) -
Helsing Johan
Publication year - 1999
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19990220)44:5<729::aid-nme529>3.0.co;2-a
Subject(s) - stress intensity factor , interface (matter) , fredholm integral equation , infinity , displacement (psychology) , plane (geometry) , stress (linguistics) , mathematics , inclusion (mineral) , structural engineering , intensity (physics) , mathematical analysis , integral equation , materials science , geometry , fracture mechanics , composite material , engineering , physics , optics , psychology , linguistics , philosophy , capillary number , capillary action , psychotherapist , thermodynamics
A numerical algorithm is presented for the problem of a crack along the interface of an elastic inclusion embedded in an elastic plane subjected to uniform stress at infinity. The algorithm is based on a Fredholm integral equation of the second kind and allows for fast and accurate solutions to geometries of great complexity. In an example crack opening displacement and stress intensity factors are computed for a crack in the interface of an inclusion with nineteen protruding arms. Copyright © 1999 John Wiley & Sons, Ltd.