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Assessment of the stability of a surface crack in laminates
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SYSNO ASEP 0434840 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Assessment of the stability of a surface crack in laminates Author(s) Hutař, Pavel (UFM-A) RID, ORCID
Ševčík, Martin (UFM-A) RID
Náhlík, Luboš (UFM-A) RID, ORCID
Zouhar, Michal (UFM-A)
Knésl, Zdeněk (UFM-A)Number of authors 5 Source Title Mechanics of Composite Materials - ISSN 0191-5665
Roč. 50, č. 1 (2014), s. 9-16Number of pages 8 s. Publication form Print - P Language eng - English Country US - United States Keywords periodically layered composite ; interface crack ; generalized stress intensity factor ; fracture mechanics of interface Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GAP108/12/1560 GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 UT WOS 000332614500002 EID SCOPUS 84899455718 DOI 10.1007/s11029-014-9388-0 Annotation The critical configuration of a crack arrested at a bimaterial interface is estimated. The stability of the crack in the soft material, whose front is situated at the interface between soft and stiff materials and who grows continuously sideways, is analyzed. A laminate with an ABAB structure containing a surface crack is considered in this study. The effective value of the stress intensity factor for the central segment of the crack front lying at the material interface is calculated for various geometrical and material configurations. Comparing the effective value of the factor with the corresponding threshold values, the stability of the configuration studied can be assessed. It is found that a 3D solution for estimating the effective stress intensity factor is necessary to describe the crack behavior at the interface even for a relatively shallow crack. The results presented can be helpful for the inspection of lamellar structures. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2015
Number of the records: 1