dc.creator | Sainz Rosa, Ana | es |
dc.creator | Centeno Báez, Gabriel | es |
dc.creator | Silva, María Beatriz | es |
dc.creator | López Fernández, José Andrés | es |
dc.creator | Martínez Donaire, Andrés Jesús | es |
dc.creator | Vallellano Martín, Carpóforo | es |
dc.date.accessioned | 2020-07-30T19:30:01Z | |
dc.date.available | 2020-07-30T19:30:01Z | |
dc.date.issued | 2020-02 | |
dc.identifier.citation | Sainz, A.R., Centeno Báez, G., Silva, M.B., López Fernández, J.A., Martínez Donaire, A.J. y Vallellano Martín, C. (2020). On the Determination of Forming Limits in Polycarbonate Sheets. Materials, 13 (4), Article number 928. | |
dc.identifier.issn | EISSN 1996-1944 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100007 | |
dc.description.abstract | By proposing an adaptation of the methodology usually used in metal forming, this paper
aims to provide a general procedure for determining the forming limits, by necking and fracture,
of polymeric sheet. The experimental work was performed by means of Nakajima specimens with
di erent geometries to allow to obtain strains in the tensile, plane, biaxial and equibiaxial states for
Polycarbonate sheet with 1 mm of thickness. The application of the time-dependent and flat-valley
approaches used in metals has been revealed appropriate to characterize the onset of necking and
obtain the forming limits of polycarbonate, despite the stable necking propagation typical of polymeric
sheets. An analysis of the evolution of the strain paths along a section perpendicular to the crack
allowed for a deeper understanding of the steady necking propagation behaviour and the adoption
of the methodology of metals to polymers. The determination of the fracture strains was enhanced
with the consideration of the principal strains of the DIC system in the last stage, just before fracture,
due to the significant elastic recovery typical of polymeric sheets. As a result of this analysis, accurate
formability limits by necking and fracture are obtained for polycarbonate sheet, together with the
principal strain space, providing a general framework for analysing incremental sheet forming
processes where the knowledge of the fracture limits is relevant. | es |
dc.description.sponsorship | Gobierno de España DPI2015-64047-R | es |
dc.description.sponsorship | Gobierno de España PGC2018-095508-B-I00 | es |
dc.description.sponsorship | Fundación para la Ciencia y Tecnología de Portugal UIDB / 50022/2020 | es |
dc.format | application/pdf | es |
dc.format.extent | 18 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Materials, 13 (4), Article number 928. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Polymer sheet forming | es |
dc.subject | Formability limits | es |
dc.subject | Necking | es |
dc.subject | Fracture | es |
dc.subject | Polycarbonate | es |
dc.title | On the Determination of Forming Limits in Polycarbonate Sheets | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería Mecánica y de Fabricación | es |
dc.relation.projectID | DPI2015-64047-R | es |
dc.relation.projectID | PGC2018-095508-B-I00 | es |
dc.relation.projectID | UIDB / 50022/2020 | es |
dc.relation.publisherversion | https://doi.org/10.3390/ma13040928 | es |
dc.identifier.doi | 10.3390/ma13040928 | es |
dc.journaltitle | Materials | es |
dc.publication.volumen | 13 | es |
dc.publication.issue | 4 | es |
dc.publication.initialPage | Article number 928 | es |
dc.identifier.sisius | 21923866 | es |
dc.contributor.funder | Gobierno de España | es |
dc.contributor.funder | Fundação para a Ciência e a Tecnologia. Portugal | es |