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On the experimental validation of Ludwick law to predict critical buckling load of nonlinear elastic columns

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dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Mecánica de Materiales Avanzadoses
dc.contributor.authorWang, Liujiao
dc.contributor.authorLarriba, Carlos
dc.contributor.authorSantiuste Romero, Carlos
dc.date.accessioned2023-03-06T08:28:49Z
dc.date.available2023-03-06T08:28:49Z
dc.date.issued2023-01-01
dc.description.abstractThe main contribution of this work is validating the Ludwick law to model the nonlinear mechanical behavior in the prediction of the critical buckling load of nonlinear elastic columns. The critical buckling loads of specimens with different slenderness ratios were obtained by conducting experimental tests on flax/PLA columns with pinned–pinned boundary conditions. The modified Ludwick law parameters were calibrated to fit the stress–strain curve obtained in tensile tests of flax/PLA specimens. The flax/PLA specimens were manufactured using the compression molding method. Moreover, a numerical model considering the Marlow hyperelastic constitutive model was used to predict the critical buckling load. Theoretical predictions using Ludwick law and numerical results were in excellent agreement with experimental data. Results showed that the maximum error of the numerical predictions for critical buckling load is 14.3%, and the maximum error of the theoretical predictions is 8.0%. Additionally, a parametric study was developed to analyze the influence of material's nonlinearity on the numerical prediction accuracy of the Marlow model.en
dc.format.extent8
dc.identifier.bibliographicCitationJiao-Wang, L., Larriba, C., & Santiuste, C. (2023). On the experimental validation of Ludwick law to predict critical buckling load of nonlinear elastic columns. Composite Structures, 303, 116237.en
dc.identifier.doihttps://doi.org/10.1016/j.compstruct.2022.116237
dc.identifier.issn0263-8223
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue116237
dc.identifier.publicationlastpage8
dc.identifier.publicationtitleComposite Structuresen
dc.identifier.publicationvolume303
dc.identifier.urihttps://hdl.handle.net/10016/36754
dc.identifier.uxxiAR/0000031213
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDAT-2022
dc.rights© 2022 The Authors.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaIngenierĂ­a Industriales
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaMaterialeses
dc.subject.otherModified Ludwick Lawen
dc.subject.otherMarlow hyperelastic modelen
dc.subject.otherCritical buckling loaden
dc.subject.otherBiocompositeen
dc.titleOn the experimental validation of Ludwick law to predict critical buckling load of nonlinear elastic columnsen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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