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Crack propagation in the vicinity of the interface in layered materials
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SYSNO ASEP 0337547 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Crack propagation in the vicinity of the interface in layered materials Author(s) Šestáková, Lucie (UFM-A)
Náhlík, Luboš (UFM-A) RID, ORCID
Hutař, Pavel (UFM-A) RID, ORCID
Knésl, Zdeněk (UFM-A)Source Title Applied and Computational Mechanics - ISSN 1802-680X
Roč. 3, č. 1 (2009), s. 195-204Number of pages 10 s. Language eng - English Country CZ - Czech Republic Keywords crack ; bi-material interface ; stability criteria ; layered materials Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects KJB200410803 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA106/09/0279 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation The paper deals with the problem of crack propagation in the vicinity of the interface in layered materials. The configuration of a crack with its tip at the bi-material in-terface can be created during crack propagation in the structure. It is important to decide if the crack propagates into the second material in this case. The step change of material properties at the bi-material interface means that classical linear elastic fracture mechanics are not appropriate. A generalized approach has to be applied. In this paper, two criteria are applied for the determination of the critical value of an applied load. Knowledge of these values is important for the estimation of the service life time of such structures.The results obtained can be used especially for multi-layer polymer composites designs. On the basis of the procedures presented, suitable materials combinations can be suggested for new composite structures. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2010
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