Effects of Cycles below the Fatigue Limit on the Life of a High Strength Steel
2009 (English)In: Journal of Testing and Evaluation, ISSN 0090-3973, Vol. 37, no 3, 201-204 p.Article in journal (Refereed) Published
The objective of this work was to study the hypothesis of the possible influence of stress ranges below the fatigue limit on the fatigue life of the material. The experiments were conducted (ill high strength steel (Uddeholm Impax Supreme (R), a CrNiMo steel) with tension-tension periodic blocks under stress control. The Fatigue limit of the steel for tension-tension was determined by the staircase method. The programmed loading contained one repeated sequence of two ranges of stress cycles, above and below the fatigue limit. One-sided t-testing showed that it cannot be concluded that there is a significant influence of the range of stress below the fatigue limit on the fatigue life of the material, although a slight beneficial effect was indicated.
Place, publisher, year, edition, pages
2009. Vol. 37, no 3, 201-204 p.
fatigue life, fatigue limit, high strength steel, hypothesis testing, propagation, initiation, aluminum
IdentifiersURN: urn:nbn:se:kth:diva-18403ISI: 000265900800001ScopusID: 2-s2.0-67650908725OAI: oai:DiVA.org:kth-18403DiVA: diva2:336450
QC 201005252010-08-052010-08-05Bibliographically approved