Describing fatigue crack growth and load ratio effects in Al 2524 T3 alloy with an enhanced exponential model

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBaptista, C. A. R. P.
dc.creatorAdib, A. M. L.
dc.creatorTorres, M. A. S.
dc.creatorPastoukhov, V. A.
dc.date2014-05-20T13:28:29Z
dc.date2016-10-25T16:48:11Z
dc.date2014-05-20T13:28:29Z
dc.date2016-10-25T16:48:11Z
dc.date2012-08-01
dc.date.accessioned2017-04-05T20:11:31Z
dc.date.available2017-04-05T20:11:31Z
dc.identifierMechanics of Materials. Amsterdam: Elsevier B.V., v. 51, p. 66-73, 2012.
dc.identifier0167-6636
dc.identifierhttp://hdl.handle.net/11449/9486
dc.identifierhttp://acervodigital.unesp.br/handle/11449/9486
dc.identifier10.1016/j.mechmat.2012.04.003
dc.identifierWOS:000306033000006
dc.identifierhttp://dx.doi.org/10.1016/j.mechmat.2012.04.003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/857640
dc.descriptionThe fatigue crack behavior in metals and alloys under constant amplitude test conditions is usually described by relationships between the crack growth rate da/dN and the stress intensity factor range Delta K. In the present work, an enhanced two-parameter exponential equation of fatigue crack growth was introduced in order to describe sub-critical crack propagation behavior of Al 2524-T3 alloy, commonly used in aircraft engineering applications. It was demonstrated that besides adequately correlating the load ratio effects, the exponential model also accounts for the slight deviations from linearity shown by the experimental curves. A comparison with Elber, Kujawski and "Unified Approach" models allowed for verifying the better performance, when confronted to the other tested models, presented by the exponential model. (C) 2012 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationMechanics of Materials
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectFatigue crack growth
dc.subjectExponential model
dc.subjectCycle asymmetry
dc.subjectAluminum alloy 2524
dc.titleDescribing fatigue crack growth and load ratio effects in Al 2524 T3 alloy with an enhanced exponential model
dc.typeOtro


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