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Case Criterion of Crack Onset in Orthotropic Bi-material Notches
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SYSNO ASEP 0354598 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Case Criterion of Crack Onset in Orthotropic Bi-material Notches Author(s) Profant, T. (CZ)
Klusák, Jan (UFM-A) RID, ORCID
Kotoul, M. (CZ)Number of authors 3 Source Title Key Engineering Materials - ISSN 1013-9826
Roč. 465, - (2011), s. 157-160Number of pages 4 s. Publication form - - - Action Materials Structure and Micromechanics of Fracture Event date 28.06.2010-30.06.2010 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords orthotropic bi-material notch ; crack initiation ; matched asymptotic procedure Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA101/08/0994 GA ČR - Czech Science Foundation (CSF) GAP108/10/2049 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000291704700033 Annotation A bi-material notch composed of two orthotropic parts is considered. The stresses and displacements are expressed using the Stroh-Eshelby-Lekhnitskii formalism for plane elasticity. The potential direction of crack initiation is determined from the maximum of the mean value of the tangential stress or the local minimum of the mean value of the generalized strain energy density factor in both materials. The matched asymptotic procedure is introduced to derive the change of potential energy for the debonding crack and the crack initiated in the determined direction. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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