Analysis of the influence of stress triaxiality on formability of hole-flanging by single-stage SPIF

Martínez Donaire, Andrés Jesús; Borrego Puche, Marcos; Morales Palma, Domingo; Centeno Báez, Gabriel; Vallellano Martín, Carpóforo

doi:10.1016/j.ijmecsci.2018.11.006

Artículo

dc.creator	Martínez Donaire, Andrés Jesús	es
dc.creator	Borrego Puche, Marcos	es
dc.creator	Morales Palma, Domingo	es
dc.creator	Centeno Báez, Gabriel	es
dc.creator	Vallellano Martín, Carpóforo	es
dc.date.accessioned	2024-01-31T11:48:33Z
dc.date.available	2024-01-31T11:48:33Z
dc.date.issued	2019-02
dc.identifier.citation	Martínez-Donaire, A.J., Borrego, M., Morales-Palma, D., Centeno, G. y Vallellano, C. (2019). Analysis of the influence of stress triaxiality on formability of hole-flanging by single-stage SPIF. International Journal of Mechanical Sciences, 151, 76-84. https://doi.org/10.1016/j.ijmecsci.2018.11.006.
dc.identifier.issn	0020-7403	es
dc.identifier.issn	1879-2162	es
dc.identifier.uri	https://hdl.handle.net/11441/154334
dc.description.abstract	Traditionally the fracture in sheet metal forming is characterized by the fracture forming limit (FFL) curve typically obtained by using conventional Nakajima tests. This curve is implicitly assumed a material property. Single point incremental forming (SPIF) is a novel and flexible forming process characterized by the ability to suppress local necking and develop stable plastic deformation up to sheet fracture. In many cases, these fracture strains are clearly above the conventional FFL. The current work presents a numerical study of the evolution of stress triaxiality in SPIF in the ɛ¯−η¯space. The simulations are validated with hole-flanging tests by single-stage SPIF over AA7075-O sheet of 1.6 mm thickness. The difference in the average stress triaxiality at fracture exhibited in SPIF and Nakajima tests would allow explaining the enhancement on formability observed in incremental sheet forming. © 2018 Elsevier Ltd	es
dc.description.sponsorship	Ministerio de Educación DPI2015-64047-R	es
dc.format	application/pdf	es
dc.format.extent	9 p.	es
dc.language.iso	eng	es
dc.publisher	Elsevier	es
dc.relation.ispartof	International Journal of Mechanical Sciences, 151, 76-84.
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Formability	es
dc.subject	Fracture forming limit (FFL)	es
dc.subject	Hole-flanging	es
dc.subject	Single point incremental forming (SPIF)	es
dc.subject	Stress triaxiality	es
dc.title	Analysis of the influence of stress triaxiality on formability of hole-flanging by single-stage SPIF	es
dc.type	info:eu-repo/semantics/article	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	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.publisherversion	https://www.sciencedirect.com/science/article/pii/S0020740318321763	es
dc.identifier.doi	10.1016/j.ijmecsci.2018.11.006	es
dc.contributor.group	Universidad de Sevilla. TEP111: Ingeniería Mecánica	es
dc.journaltitle	International Journal of Mechanical Sciences	es
dc.publication.volumen	151	es
dc.publication.initialPage	76	es
dc.publication.endPage	84	es
dc.contributor.funder	Ministerio de Educación. España	es

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