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Error estimation of stress intensity factors for mixed‐mode cracks
Author(s) -
Gallimard L.,
Panetier J.
Publication year - 2006
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/nme.1705
Subject(s) - stress intensity factor , estimator , mode (computer interface) , mathematics , mixed mode , elasticity (physics) , linear elasticity , a priori and a posteriori , stress (linguistics) , intensity (physics) , mathematical analysis , statistics , materials science , computer science , structural engineering , optics , fracture mechanics , engineering , physics , composite material , finite element method , philosophy , linguistics , epistemology , operating system
This paper presents an a posteriori error estimator for mixed‐mode stress intensity factors in plane linear elasticity. A surface integral over an arbitrary crown is used for the separate calculation of the combined mode's stress intensity factors. The error in the quantity of interest is based on goal‐oriented error measures and estimated through an error in the constitutive relation. Copyright © 2006 John Wiley & Sons, Ltd.