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On a critical geometry of a crack arrested at a bimaterial interface
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SYSNO ASEP 0385401 Document Type K - Proceedings Paper (Czech conf.) R&D Document Type Conference Paper Title On a critical geometry of a crack arrested at a bimaterial interface Author(s) Ševčík, Martin (UFM-A) RID
Zouhar, Michal (UFM-A)
Máša, Bohuslav (UFM-A)
Hutař, Pavel (UFM-A) RID, ORCID
Náhlík, Luboš (UFM-A) RID, ORCIDNumber of authors 5 Source Title 14th International conference Applied Mechanics 2012 - Conference proceedings. - Plzeň : Západočeská univerzita v Plzni, 2012 / Lukeš V. ; Hajžman M. ; Byrtus M. - ISBN 978-80-261-0097-3
S. 141-144Number of pages 4 s. Publication form Medium - C Action Applied Mechanics 2012 Event date 16.04.2012-18.04.2012 VEvent location Plzeň Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords fracture mechanics of an interface ; generalized stress intensity factor ; crack Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GD106/09/H035 GA ČR - Czech Science Foundation (CSF) GAP108/12/1560 GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 Annotation Surface crack propagation in a thin soft protective layer on a massive stiffer substrate is analyzed using generalized linear elastic fracture mechanics. The growth of the initial crack is considered in both forward and sideways directions and the influence of the interface between the protective layer and massive substrate on the final crack configuration is investigated. It is shown that, depending on the elastic mismatch, the part of the crack front can be arrested at the interface protective layer/substrate and the rest of the crack grows continuously sideways only. The effective value of the stress intensity factor is used in order to predict the conditions under which the crack will propagate through the interface into the second material. Corresponding calculations have been made by finite element method. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2013
Number of the records: 1