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Fatigue Life Prediction of an Automotive Chassis System with Combined Hardening Material Model

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dc.contributor.authorGeorge, John K.
dc.contributor.authorGross, Daniel
dc.contributor.authorJahed, Hamid
dc.contributor.authorRoostaei, Ali Asghar
dc.date.accessioned2017-07-14T17:34:03Z
dc.date.available2017-07-14T17:34:03Z
dc.date.issued2016-04-05
dc.descriptionReplicated with permission by SAE, Copyright © 2016 SAE International. Further distribution of this material is not permitted without prior permission from SAE. George, J., Gross, D., Jahed, H., and Roostaei, A., "Fatigue Life Prediction of an Automotive Chassis System with Combined Hardening Material Model," SAE Technical Paper 2016-01-0378, 2016, doi:10.4271/2016-01-0378.en
dc.description.abstractThe choice of an appropriate material model with parameters derived from testing and proper modeling of stress-strain response during cyclic loading are the critical steps for accurate fatigue-life prediction of complex automotive subsystems. Most materials used in an automotive substructure, like a chassis system, exhibit combined hardening behavior and it is essential to capture this behavior in the CAE model in order to accurately predict the fatigue life. This study illustrates, with examples, the strain-controlled testing of material coupons, and the calculations of material parameters from test data for the combined hardening material model used in the Abaqus solver. Stress-strain response curves and fatigue results from other simpler material models like the isotropic hardening model and the linear material model with Neuber correction are also discussed in light of the respective fatigue theories. A prediction of number of cycles for crack initiation of an automotive chassis system under a braking load cycle are compared to the results of physical tests in order to understand the merits and limitations of each model.en
dc.identifier.urihttps://doi.org/10.4271/2016-01-0378
dc.identifier.urihttp://hdl.handle.net/10012/12068
dc.language.isoenen
dc.publisherSociety of Automotive Engineersen
dc.subjectChassisen
dc.subjectFatigue damageen
dc.subjectForecastingen
dc.subjectHardeningen
dc.subjectStress analysisen
dc.subjectStress-strain curvesen
dc.subjectAppropriate materialsen
dc.subjectAutomotive subsystemsen
dc.subjectCombined hardeningsen
dc.subjectFatigue life predictionen
dc.subjectIsotropic hardeningsen
dc.subjectMaterial parameteren
dc.subjectStrain controlled testingen
dc.subjectStress-strain responseen
dc.subjectFatigue of materialsen
dc.titleFatigue Life Prediction of an Automotive Chassis System with Combined Hardening Material Modelen
dc.typeTechnical Reporten
dcterms.bibliographicCitationGeorge, J., Gross, D., Jahed, H., & Roostaei, A. (2016). Fatigue Life Prediction of an Automotive Chassis System with Combined Hardening Material Model. https://doi.org/10.4271/2016-01-0378en
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Mechanical and Mechatronics Engineeringen
uws.peerReviewStatusRevieweden
uws.scholarLevelFacultyen
uws.typeOfResourceTexten

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