Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4318
DC FieldValueLanguage
dc.contributor.authorMenezes, L. F.-
dc.contributor.authorFernandes, J. V.-
dc.contributor.authorRodrigues, D. M.-
dc.date.accessioned2008-09-01T10:45:49Z-
dc.date.available2008-09-01T10:45:49Z-
dc.date.issued1999en_US
dc.identifier.citationMaterials Science and Engineering A. 264:1-2 (1999) 130-138en_US
dc.identifier.urihttp://hdl.handle.net/10316/4318-
dc.description.abstractThe effect of cross section variation on formability of prestrained samples has been investigated using finite element simulations of a standard sheet tensile test. The mechanical model takes into account large elastoplastic strains and rotations that occur during deformation. Hill's orthotropic yield criterion with isotropic hardening describes the anisotropic plastic properties of the sheet. The isotropic hardening is modelled by a modified Swift law that describes the response of prestrained materials in reloading. Two different situations were simulated: reloading in tension of samples with constant cross sectional area and reloading in tension of samples with two zones of slightly different cross sectional areas. The results show that the strain distribution along the tensile axis of a prestrained sample depends on the level of the prestrain and also on the presence and size of geometrical fluctuations in the cross section, which always occur in experimental samples. This dependence is higher for materials with lower work-hardening rates.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6TXD-3W6F4W3-D/1/b0ee20cd6d1b35fcfc8bda63d6c9f67fen_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectMechanical modellingen_US
dc.subjectNumerical simulationen_US
dc.subjectPlasticityen_US
dc.titleNumerical simulation of tensile tests of prestrained sheetsen_US
dc.typearticleen_US
uc.controloAutoridadeSim-
item.grantfulltextopen-
item.languageiso639-1en-
item.fulltextCom Texto completo-
crisitem.author.deptFaculdade de Ciências e Tecnologia, Universidade de Coimbra-
crisitem.author.parentdeptUniversidade de Coimbra-
crisitem.author.researchunitCentre for Mechanical Engineering-
crisitem.author.orcid0000-0002-4494-5458-
Appears in Collections:FCTUC Eng.Mecânica - Artigos em Revistas Internacionais
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