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Assessment of asymmetric crack initiation in open‐hole plates using a coupled stress and energy criterion
Author(s) -
Rosendahl Philipp L.,
Weißgraeber Philipp,
Stein Nicolas,
Becker Wilfried
Publication year - 2016
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201610071
Subject(s) - structural engineering , stress (linguistics) , fracture mechanics , materials science , bending , fracture (geology) , mechanics , ultimate tensile strength , energy (signal processing) , composite material , mathematics , engineering , physics , philosophy , linguistics , statistics
An application of the finite fracture mechanics concept to open‐hole plates subject to combined tensile and bending loading is presented. In finite fracture mechanics, the simultaneous satisfaction of both, a stress and an energy criterion, is enforced as a condition for crack initiation. Efficient modeling and closed‐form expressions for the dependence of the stress and energy quantities on governing structural and material parameters allow for a comprehensive numerical analysis of the onset of asymmetric crack patterns. The obtained failure load predictions are found to agree well with a cohesive zone model and experimental data from literature. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)