Fretting fatigue crack growth for a spherical indenter with constant and cyclic bulk load
2005 (English)In: Engineering Fracture Mechanics, ISSN 0013-7944, E-ISSN 1873-7315, Vol. 72, no 11, 1664-1690 p.Article in journal (Refereed) Published
Fatigue growth of edge cracks subjected to non-proportional fretting loads was investigated experimentally and numerically. The cracks were produced during fretting experiments with a spherical contact between two alpha + beta titanium alloys. Constant normal load was combined with cyclic tangential load and constant or cyclic bulk load. Crack propagation was detected during the experiments by strain gauges on the specimen surface and acoustic emission measurements. A parametric crack growth description procedure was used to model fatigue growth of the three-dimensional fretting cracks that were loaded with multiaxial and non-proportional stresses from the fretting contact. The predicted crack growth lives and crack shapes agreed with the experimental results. A crack path prediction based on the maximum principal value of the stress range tensor Delta sigma(ij) was evaluated.
Place, publisher, year, edition, pages
2005. Vol. 72, no 11, 1664-1690 p.
fretting fatigue; fretting experiment; titanium alloys; fatigue crack growth; crack path
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-6422DOI: 10.1016/j.engfracmech.2005.01.004ISI: 000228682300002ScopusID: 2-s2.0-15544367252OAI: oai:DiVA.org:kth-6422DiVA: diva2:11127
QC 201008272006-11-232006-11-232011-11-08Bibliographically approved