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Computation of stress intensity factors in a plane homogeneous anisotropic solid
Author(s) -
Steigemann Martin,
Fulland Markus,
SpecoviusNeugebauer Maria,
Richard Hans A.
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200700812
Subject(s) - stress intensity factor , computation , finite element method , anisotropy , elasticity (physics) , mathematical analysis , tension (geology) , mathematics , homogeneous , fissure , materials science , structural engineering , physics , algorithm , engineering , composite material , optics , combinatorics , ultimate tensile strength
Abstract The accurate computation of stress intensity factors (SIFs) plays a decisive role in the determination of crack paths. The calculation of SIFs with the help of singular weight functions leads to pure Neumann problem for anisotropic elasticity in a plane domain with a crack. We present a method to overcome the specific numerical difficulties which arises while calculating these solutions with Finite Element methods. the accuracy and advantage of this method are shown by a numerical example, the calculation of SIFs of a compact tension specimen. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)