Breathing-induced fatigue in thin-walled construction

0424990 - ÚTAM 2014 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
Škaloud, Miroslav - Zörnerová, Marie - Urushadze, Shota
Breathing-induced fatigue in thin-walled construction.
Procedia Engineering. Vol. 66. Amsterdam: Elsevier, 2013 - (Afzali, M.; Lefebvre, F.), s. 383-392. ISSN 1877-7058.
[Fatique Design 2013. International conference on fatique design. Senlis (FR), 27.11.2013-28.11.2013]
Grant ostatní: Evropská komise(XE) RFSR-CT-2008-00033 BRIFAG
Institucionální podpora: RVO:68378297
Klíčová slova: slender webs * fatigue limit states * buckling * breathing
Kód oboru RIV: JM - Inženýrské stavitelství
http://www.sciencedirect.com/science/article/pii/S1877705813019255

The cumulative damage behaviour generated by web breathing was analysed, the process of the initiation and propagation of fatigue cracks induced thereby was studied, and their impact on the failure mechanism and the fatigue limit state of the girders was determined. It was found out that the above phenomenon led to a significant "erosion" of the beneficial post-buckled reserve of strength. Therefore, S-N curves were established for (i) the fatigue limit state and (ii) the onset-of-the-first-fatigue-crack limit state, specifying those periods after which checks for the appearance of fatigue cracks in bridge plate elements need to be carried out.
Trvalý link: http://hdl.handle.net/11104/0232271