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Investigation of Plasticity Effects on Growing Fatigue Cracks Using the CJP Model of Crack Tip Fields

dc.contributor.authorVasco, José Manuel
dc.contributor.authorCamacho-Reyes, Alonso
dc.contributor.authorGómez-Gonzales, Giancarlo Luis
dc.contributor.authorDiaz-Garrido, Francisco Alberto
dc.date.accessioned2025-03-27T09:29:06Z
dc.date.available2025-03-27T09:29:06Z
dc.date.issued2023-08-22
dc.descriptionQ1 (20/90 78.3% en Metallurgy & Metallurgical Engineering, IF 2023 = 3.1)
dc.description.abstractA growing fatigue crack gives rise to a plastic enclave that envelops the crack and can exert a shielding effect on the crack from the global elastic stress field driving fatigue propagation. This work presents the potential of the CJP model of crack tip fields to investigate the plasticity-induced shielding effects on growing fatigue cracks as well as its ability to characterise the size and shape of the plastic zone generated at the tip of a growing fatigue crack. The model was specifically developed to consider the influence of the plastic enclave generated around a fatigue crack on the surrounding elastic material. Different aspects related to fracture mechanics and its implications for fatigue crack growth have been investigated, namely plasticity-induced crack shielding, the retardation effect induced on fatigue crack growth due to the application of an overload and the estimate of the size and shape of the crack tip plastic zone. The model has been successfully applied by analysing displacement fields experimentally measured by DIC in different CT specimens made of 2024-T3 aluminium alloy and commercially pure titanium. Results presented in this work intend to contribute to a better understanding of the shielding effects during fatigue crack growth.
dc.identifier.citationVasco-Olmo, J.M.; Camacho-Reyes, A.; Gómez Gonzales, G.L.; Díaz, F. Investigation of Plasticity Effects on Growing Fatigue Cracks Using the CJP Model of Crack Tip Fields. Materials 2023, 16, 5744. https://doi.org/10.3390/ ma16175744
dc.identifier.issn1996-1944
dc.identifier.other10.3390/ma16175744
dc.identifier.urihttps://doi.org/10.3390/ma16175744
dc.identifier.urihttps://hdl.handle.net/10953/4867
dc.language.isoeng
dc.publisherMDPI
dc.relation.ispartofMaterials
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.subjectFatigue crack growth
dc.subjectCrack tip fields
dc.subjectCrack shielding
dc.subjectCJP model
dc.subjectDigital image correlation
dc.subject.udc621
dc.titleInvestigation of Plasticity Effects on Growing Fatigue Cracks Using the CJP Model of Crack Tip Fields
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion

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