Computation of stress intensity factors in a plane homogeneous anisotropic solid |
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| Authors: | Martin Steigemann Markus Fulland Maria Specovius-Neugebauer Hans A Richard |
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| Institution: | 1. Institute of Analysis and Applied Mathematics, University of Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany;2. Westfälisches Umwelt Zentrum, Universität Paderborn, Pohlweg 55, 33098 Paderborn, Germany;3. Institute of Applied Mechanics, Universität Paderborn, Pohlweg 47-49, 33098 Paderborn, Germany |
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| 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) |
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