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Multi-parameter crack tip stress state description for estimation of fracture process zone extent in silicate composite WST specimens
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SYSNO ASEP 0422440 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Multi-parameter crack tip stress state description for estimation of fracture process zone extent in silicate composite WST specimens Author(s) Veselý, V. (CZ)
Sobek, J. (CZ)
Šestáková, L. (CZ)
Frantík, P. (CZ)
Seitl, Stanislav (UFM-A) RID, ORCIDNumber of authors 5 Source Title Frattura ed Integrita Strutturale. - : Gruppo Italiano Frattura - ISSN 1971-8993
Roč. 7, č. 25 (2013), s. 69-78Number of pages 10 s. Language eng - English Country IT - Italy Keywords Near-crack tip fields ; Williams series ; higher-order terms ; stress field approximation ; wedge splitting test ; fracture process zone Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GAP104/11/0833 GA ČR - Czech Science Foundation (CSF) GAP105/11/1551 GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 DOI 10.3221/IGF-ESIS.25.11 Annotation For wedge splitting test specimens, the stress and displacement fields both in the vicinity and also in larger distance from the crack tip are investigated by means of numerical methods. Several variants of boundary conditions were modeled. The stress intensity factor K, T-stress and even higher-order terms of William series were determined and subsequently utilized for analytical approximation of the stress field. A good fit between the analytical and numerical solution in dependence on the distance from the crack tip was shown, compared and discussed. Presented approach is considered as suitable for estimation of the fracture process zone extent in silicate composite materials. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2014
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