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dc.contributor.authorDe Souza, L. H B
dc.contributor.authorMenezes, M. A. [UNESP]
dc.contributor.authorFilho, L. A. Moreira
dc.date.accessioned2014-05-27T11:24:51Z
dc.date.available2014-05-27T11:24:51Z
dc.date.issued2010-12-01
dc.identifierhttp://dx.doi.org/10.1063/1.3552485
dc.identifier.citationAIP Conference Proceedings, v. 1315, p. 443-448.
dc.identifier.issn0094-243X
dc.identifier.issn1551-7616
dc.identifier.urihttp://hdl.handle.net/11449/72006
dc.description.abstractA new analytical theory including friction was developed to assess strain limits in punch stretching of anisotropic sheet metals. This new approach takes into consideration the anisotropic behaviour of sheet materials and could explain the mechanical behaviour of a variety of anisotropic sheet materials. The theory explains the sheet metal failure so for the drawing as the stretching region of the forming limit curve, particularly for materials that present the strain-ratio dependence of limit strain ε 1, where dε 1/dρ is not always greater than zero. dε 1/ dρ or dε 1/dε 2 could be equal to or smaller than zero for a range of materials. Therefore, this new theory can explains such experimental observations, besides to assuming that membrane element relations near the pole, for the case of punch stretching are dependent of sheet metal properties as the process history and also suggests that the onset of local necking is controlled by shear. Thus, theoretical results obtained through this new approach are compared with experimental results available in the literature. It is demonstrated the effect of friction on a FLC curve for both regions, drawing and stretching. © 2010 American Institute of Physics.en
dc.format.extent443-448
dc.language.isoeng
dc.relation.ispartofAIP Conference Proceedings
dc.sourceScopus
dc.subjectanisotropy
dc.subjectplastic instability and friction
dc.subjectpunch stretching
dc.subjectSheet metal forming
dc.subjectstrain limits
dc.titleTheoretical approach including friction for determining strain limits in punch stretching of anisotropic sheet metalsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://publishing.aip.org/authors/web-posting-guidelines
dc.contributor.institutionIEM
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.description.affiliationITA Aeronautical Technological Institute IEM, Praça Mal. Eduardo Gomes, 50, Vila das Acácias-S.J.Campos, CEP 12228-900
dc.description.affiliationUNESP São Paulo State University Ilha Solteira Campus, DEM, Av. Brasil, 56, - Centro, Ilha Solteira, CEP 15385-000
dc.description.affiliationUnespUNESP São Paulo State University Ilha Solteira Campus, DEM, Av. Brasil, 56, - Centro, Ilha Solteira, CEP 15385-000
dc.identifier.doi10.1063/1.3552485
dc.rights.accessRightsAcesso aberto
dc.identifier.scopus2-s2.0-79952568629
dc.identifier.file2-s2.0-79952568629.pdf
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