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Reliable fatigue design, by rigid rules, by magic or by enlightened engineering
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).ORCID iD: 0000-0002-6730-0214
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Hållfasthet (BMh).
2013 (English)In: Procedia Engineering, ISSN 1877-7058, E-ISSN 1877-7058, Vol. 66, 12-25 p.12-25Article in journal (Refereed) Published
Abstract [en]

This paper discusses some basic differences between engineering approaches to fatigue reliability assessment. The comparison is based on the fact that mechanical fatigue is a highly empirical science with large uncertainties in prior knowledge, both regarding observed data and model accuracy. It is claimed that the amount of available prior physical knowledge should decide the level of complexity in reliability tools, not computer resources nor mathematical theory. As a result the second moment statistics is put forward as a useful tool in fatigue reliability assessment, either in the regulated form like in Eurocode or in a free engineering form like through the Variation Mode and Effect Analysis. The latter method is outlined in certain detail and its practical usefulness demonstrated for some engineering reliability problems

Place, publisher, year, edition, pages
2013. Vol. 66, 12-25 p.12-25
Keyword [en]
reliability; fatigue; spectrum; safety factor.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-12339DOI: 10.1016/j.proeng.2013.12.058Local ID: 16024OAI: oai:DiVA.org:ri-12339DiVA: diva2:970161
Conference
5th Fatigue Design Conference, Fatigue Design 2013
Note

Fatigue Design 2013, DOI: http://dx.doi.org/10.1016/j.proeng.2013.12.058

Available from: 2016-09-13 Created: 2016-09-13 Last updated: 2017-05-08Bibliographically approved

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