Presentation
Recent Approaches for the Determination of Forming Limits by Necking and Fracture in Sheet Metal Forming
Author/s | Silva, María Beatriz
Martínez Donaire, Andrés Jesús Centeno Báez, Gabriel Morales-Palma, Domingo Vallellano Martín, Carpóforo Martins, P.A.F |
Department | Universidad de Sevilla. Departamento de Ingeniería Mecánica y de Fabricación |
Publication Date | 2015 |
Deposit Date | 2018-08-21 |
Published in |
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ISBN/ISSN | 1877-7058 |
Abstract | Forming limit diagrams (FLD’s) are used to evaluate the workability of metal sheets. FLD’s provide the failure locus at which
plastic instability occurs and localized necking develops (commonly designated as the forming ... Forming limit diagrams (FLD’s) are used to evaluate the workability of metal sheets. FLD’s provide the failure locus at which plastic instability occurs and localized necking develops (commonly designated as the forming limit curve - FLC), and the failure loci at the onset of fracture by tension (FFL) or by in-plane shear (SFFL). The interest of metal formers in controlling localized necking is understandable because the consequence of plastic instability is an undesirable surface blemish in components. However, because under certain loading conditions fracture can precede necking in sheet metal forming processes, there is a growing interest in characterizing the forming limits by necking and fracture in the FLD’s. This paper gathers together a number of recently developed methodologies for detecting the onset of local necking and fracture by in-plane tension or in-plane shear, and discusses their applicability to determine experimentally the FLC’s, FFL’s and SFFL’s. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España |
Project ID. | DPI2012-32913 |
Citation | Silva, M.B., Martínez Donaire, A.J., Centeno Báez, G., Morales-Palma, D., Vallellano Martín, C. y Martins, P.A.F. (2015). Recent Approaches for the Determination of Forming Limits by Necking and Fracture in Sheet Metal Forming. En The Manufacturing Engineering Society International Conference, MESIC 2015 (342-349), Barcelona, España: Elsevier. |
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