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dc.contributor.authorAndriollo, Tito
dc.contributor.authorThorborg, Jesper
dc.contributor.authorHattel, Jesper
dc.date.accessioned2016-01-13T16:43:44Z
dc.date.available2016-01-13T16:43:44Z
dc.date.issued2015
dc.identifier.citationAndriollo, Tito; Thorborg, Jesper; Hattel, Jesper. The influence of the graphite mechanical properties on the constitutive response of a ferritic ductile cast iron – a micromechanical FE analysis. A: COMPLAS XIII. "COMPLAS XIII : proceedings of the XIII International Conference on Computational Plasticity : fundamentals and applications". CIMNE ed. Barcelona: CIMNE, 2015, p. 632-641.
dc.identifier.isbn978-84-944244-6-5
dc.identifier.urihttp://hdl.handle.net/2117/81388
dc.description.abstractIn the present paper a micro-mechanical approach is used to investigate the influence of the graphite mechanical properties on the loading response in the early deformation range of ductile cast iron. A periodic unit cell composed by a single graphite nodule embedded in a uniform ferritic matrix is considered and elasto-plastic behavior of both constituents is assumed; damage evolution in the ductile matrix is taken into account via Lemaitre’s isotropic model. Full 3D and 2D plane-stress finite element analyses are performed to simulate the loading conditions experienced by nodules located in the bulk as well as on the material surface. The effects of residual stresses arising during the manufacturing process are also accounted for. It is shown that the constitutive response of the equivalent composite medium can match ductile cast iron only if the graphite Young’s modulus value lies within a certain interval, which differs from that reported in previous works on the subject. Experimental support for the numerical results is provided.
dc.format.extent10 p.
dc.language.isoeng
dc.publisherCIMNE
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures metàl·liques
dc.subject.lcshFinite element method
dc.subject.lcshPlasticity -- Mathematical models
dc.subject.lcshPlasticity
dc.subject.lcshIron, Nodular--Mathematical models
dc.subject.otherComputational plasticity
dc.subject.otherDamage
dc.subject.otherDuctile cast iron
dc.subject.otherMicro-mechanics
dc.titleThe influence of the graphite mechanical properties on the constitutive response of a ferritic ductile cast iron – a micromechanical FE analysis
dc.typeConference lecture
dc.subject.lemacElements finits, Mètode dels
dc.subject.lemacPlasticitat -- Models matemàtics
dc.subject.lemacPlasticitat
dc.subject.lemacFerro -- Propietats mecàniques
dc.rights.accessOpen Access
local.citation.contributorCOMPLAS XIII
local.citation.pubplaceBarcelona
local.citation.publicationNameCOMPLAS XIII : proceedings of the XIII International Conference on Computational Plasticity : fundamentals and applications
local.citation.startingPage632
local.citation.endingPage641
local.citation.editionCIMNE


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