A closed expression for the stress intensity factor of concave fatigue cracks in rotating shafts

dc.affiliation.areaUC3M. Área de Ingeniería Mecánicaes
dc.affiliation.dptoUC3M. Departamento de Ingeniería Mecánicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Simulación y Optimización Mecánica (SiOMec)es
dc.contributor.authorRubio Herrero, Patricia
dc.contributor.authorBernal Cuadrado, Javier
dc.contributor.authorMuñoz Abella, María Belén
dc.contributor.authorRubio Ruiz de Aguirre, María Lourdes
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.description.abstractA new analytical model is developed that allows us to obtain the Stress Intensity Factor (SIF) in a point on a concave shaped crack contained in a rotating shaft as a function of the characteristics of the crack (depth and aspect), the point position on the crack front, and the rotation angle. The model can be used for all kinds of linear elastic materials. The Finite Element Method (FEM) has been used to make a tridimensional quasi-static model of a shaft that contains a concave shaped crack in its central section, subjected to rotary bending. Different rotation angles are taken into account in order to simulate the rotation of the shaft. The SIF is determined in every position of the front of the concave crack, for each crack geometry and for each rotation angle. Then an analytical model is developed using all the results of SIF obtained with the numerical model, and is verified comparing its results with solutions found in the literature. The proposed model may be very useful to study the dynamic behavior of shafts with concave shaped cracks, and can be employed to analyze the propagation of these types of cracks.en
dc.description.sponsorshipThe authors would like to thank the Spanish Ministerio de Economía y Competitividad for the support for this work through the projects DPI2009-13264 and DPI2013-45406-Pen
dc.identifier.bibliographicCitationRubio, P., et al. A closed expression for the stress intensity factor of concave fatigue cracks in rotating shafts. In: Engineering fracture mechanics, Vol. 214, June 2019, Pp. 233-247en
dc.identifier.issn1873-7315 (online)
dc.identifier.publicationtitleENGINEERING FRACTURE MECHANICSen
dc.publisherElsevier Ltd.en
dc.relation.projectIDGobierno de España. DPI2009-13264es
dc.relation.projectIDGobierno de España. DPI2013-45406-Pes
dc.rights© 2019 Elsevier Ltd. All rights reserved.en
dc.rightsThis work is licensed under a Creative Commons Attribution- NonCommercial-NoDerivatives 4.0 International License.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.otherCracked shaftsen
dc.subject.otherConcave cracksen
dc.subject.otherBreathing mechanismen
dc.subject.otherRotating shaftsen
dc.subject.otherStress intensity factoren
dc.titleA closed expression for the stress intensity factor of concave fatigue cracks in rotating shaftsen
dc.typeresearch article*
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