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The difference in the fatigue behaviour of webs "breathing" under repeated (i) predominant shear and (ii) patch loading
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SYSNO ASEP 0366049 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The difference in the fatigue behaviour of webs "breathing" under repeated (i) predominant shear and (ii) patch loading Author(s) Škaloud, Miroslav (UTAM-F) RID, SAI
Zörnerová, Marie (UTAM-F) RID, SAINumber of authors 2 Source Title Eurosteel 2011. - Brusel : ECCS European Convention for Constructional Steelwork, 2011 / Dunai L. - ISBN 978-92-9147-103-4 Pages s. 2067-2072 Number of pages 6 s. Action Eurosteel 2011 Event date 31.08.2011-02.09.2011 VEvent location Budapest Country HU - Hungary Event type WRD Language eng - English Country BE - Belgium Keywords fatigue ; shear ; patch loading Subject RIV JM - Building Engineering R&D Projects GA103/09/0091 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20710524 - UTAM-F (2005-2011) Annotation Given the complex character of the cumulative damage process generated in -breathing- webs, the experimental way was chosen for the solution. Two kinds of many times repeated loading were applied in the tests, (i) combined shear and bending, with the effect of shear predominating, (ii) patch loading. In all experiments, the initiation and propagation of fatigue cracks, generated in the “breathing” webs of the girders, and their impact on the failure mechanism of the whole girders were studied. It was found out that the aforesaid was much influenced by the kind of loading applied, the regime of fatigue cracks in the case of webs under the action of repeated predominant shear being considerably different from that occurring in the case of repeated patch loading. Also the fatigue failure mechanism in each case was different. And, understandably, this difference must also influence the approach to design. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2012
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