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Reliability assessment of a bi-material notch: Strain energy density factor approach
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SYSNO ASEP 0354586 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Reliability assessment of a bi-material notch: Strain energy density factor approach Author(s) Klusák, Jan (UFM-A) RID, ORCID
Knésl, Zdeněk (UFM-A)Number of authors 2 Source Title Theoretical and Applied Fracture Mechanics. - : Elsevier - ISSN 0167-8442
Roč. 53, č. 2 (2010), s. 89-93Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords crack initiation ; bi-material notch ; strain energy density factor Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GAP108/10/2049 GA ČR - Czech Science Foundation (CSF) GA101/08/0994 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000278673300001 DOI 10.1016/j.tafmec.2010.03.001 Annotation Joints of different materials have many applications in structural engineering and microelectronics. In the present contribution the joint is modelled as a bi-material notch. The singular stress field near the notch tip is investigated. Depending on the notch geometry and materials, the stress field can have one or two singularities. It is shown that to study the problem of a crack onset at the notch, both terms have to be taken into account. Criteria for the direction and for crack nucleation are formulated. The approach utilizes the knowledge of the strain energy density factor distribution in a bi-material notch vicinity. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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