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Advances in Fracture and Damage Mechanics /4./
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SYSNO ASEP 0024541 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Assessment of a bi-material wedge with two stress singularities Title Posouzení bi-materiálového vrubu se dvěma singularitami Author(s) Klusák, Jan (UFM-A) RID, ORCID
Knésl, Zdeněk (UFM-A)Source Title Advances in Fracture and Damage Mechanics /4./. - Eastleigh : EC, Ltd, 2005 / Aliabadi M.H. ; Buchholz F.G. ; Alfaiate J. ; Planas J. ; Abersek A. ; Nishida S.I. - ISBN 0-9547783-1-6 Pages s. 211-216 Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords bi-material wedge ; stabiltiy criterion Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GP106/03/P054 GA ČR - Czech Science Foundation (CSF) GA101/05/0320 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation Joints of different materials have many applications in structural engineering and microelectronics. In the present contribution the joint is modeled as a bi-material wedge. The singular character of the stress field near the wedge tip is investigated. Depending on the geometry of the wedge and the selection of the materials, the stress field can have two singularities. Correspondingly the singular stress field is expressed as a sum of two singular terms with different stress singularity exponents. It is shown that to study the problem of a crack onset at the wedge, both two terms have to be taken into account. First, the angle of the direction of potential crack initiation is determined. Then a criterion for crack nucleation and propagation in the selected direction is formulated Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2006
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