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dc.contributor.authorNoban, M.
dc.contributor.authorJahed, Hamid
dc.contributor.authorIbrahim, E.
dc.contributor.authorInce, Ayhan 19:46:48 (GMT) 19:46:48 (GMT)
dc.descriptionThe final publication is available at Elsevier via © 2012. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.description.abstractA set of strain-controlled biaxial proportional and non-proportional tests were conducted on solid and tubular specimens of 30CrNiMo8HH steel. The effect of the phase angle on fatigue life was studied. This effect becomes noticeable when applying a 90 degrees out-of-phase loading, reducing the fatigue life by a factor up to 5. It has been shown that the material has no additional hardening due to out-of-phase loading. To account for this severe path dependency, a material dependent non-proportionality modification factor is proposed. This path dependent sensitivity factor is applied to six different fatigue parameters including maximum equivalent total strain, maximum equivalent stress, Smith-Watson-Topper, Fatemi-Socie, plastic strain energy density and total strain energy density to correlate the fatigue results. The predicted fatigue lives are compared with the experiments. The cyclic plasticity models of Mroz and Chaboche were successfully employed to model the cyclic behavior of 30CrNiM08HH steel. It has been shown that estimations based on the proposed non-proportionality modification factor agree well with the experimental results.en
dc.description.sponsorshipNatural Sciences and Engineering Research Council (NSERC) of Canadaen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.subjectSensitivity factoren
dc.subjectOut-of-phase loadingen
dc.subjectLow cycle fatigueen
dc.subjectCyclic plasticityen
dc.subjectFatigue parameteren
dc.titleLoad path sensitivity and fatigue life estimation of 30CrNiMo8HHen
dcterms.bibliographicCitationNoban, M., Jahed, H., Ibrahim, E., & Ince, A. (2012). Load path sensitivity and fatigue life estimation of 30CrNiMo8HH. International Journal of Fatigue, 37, 123–133.
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen

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