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A fracture initiation direction influenced by an orthotropic bi-material notch
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SYSNO ASEP 0332645 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title A fracture initiation direction influenced by an orthotropic bi-material notch Author(s) Klusák, Jan (UFM-A) RID, ORCID
Profant, T. (CZ)
Kotoul, M. (CZ)Source Title Proceedings of the international conference on Crack Paths. - Padua : University Padua, 2009 / Atzori B. ; Carpinteri A. ; Pook L. P. Pages s. 743-750 Number of pages 8 s. Action Crack Paths 2009 Event date 23.09.2009-25.09.2009 VEvent location Vicenza Country IT - Italy Event type WRD Language eng - English Country IT - Italy Keywords fracture mechanics ; bi-material notch ; crack initiation direction Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA101/08/0994 GA ČR - Czech Science Foundation (CSF) 1QS200410502 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation In the present contribution the joint of orthotropic materials is modelled as an orthotropic bi-material notch. The singular stress field near the notch tip is investigated. Depending on the notch geometry and materials, the stress singularity exponents are determined. A criterion for the direction of crack nucleation is formulated based on angular dependences of the mean value of tangential stress in the notch tip vicinity. For various combinations of the orthotropic parts of the bi-material notch the crack initiation direction was investigated by means of the finite element method as well as on the basis of the analytical-numerical approach described in the paper. Results of both methods are mutually compared and discussed. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2010
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