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Short crack growth in polycrystalline materials
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SYSNO ASEP 0352811 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Short crack growth in polycrystalline materials Author(s) Polák, Jaroslav (UFM-A) RID, ORCID
Kruml, Tomáš (UFM-A) RID, ORCID
Obrtlík, Karel (UFM-A) RID, ORCID
Man, Jiří (UFM-A) RID, ORCID
Petrenec, Martin (UFM-A)Number of authors 5 Source Title Procedia Engineering. - Amsterdam : Elsevier BV
Roč. 2, č. 1 (2010), s. 883-892Number of pages 10 s. Action Fatigue 2010 Event date 06.06.2010-11.06.2010 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country NL - Netherlands Keywords fatigue damage ; short crack ; plastic strain Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA101/07/1500 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000278762900093 DOI doi:10.1016/j.proeng.2010.03.095 Annotation The early stages of fatigue damage in cyclic loading in several polycrystalline materials were studied. The initiation of fatigue cracks is influenced by a number of factors like the presence of inclusions, grain size and cyclic creep strain. The growth of short cracks was measured in symmetrical loading and in cycling with positive mean stress. The kinetics of short crack growth is affected by the presence of secondary cracks and can be approximated by an exponential law. The integrated crack growth law is equivalent to Coffin-Manson law allowing the interpretation of this law in terms of short crack growth. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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