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Author(s): Pedro Teixeira
Abel D. Santos
José Manuel César de Sá
A. Barata da Rocha
Title: Fracture onset in sheet metal forming : a comparison between a finite element damage model and a post-processing plastic instability code
Issue Date: 2007
Abstract: Necking prediction in sheet metal forming is an important demand from industry,since such assessment defines the success of a stamping process. This paper presents twonumerical approaches for failure prediction in sheet metal forming operations: theimplementation of the Lemaitres ductile damage model in the Abaqus/Explicit code inaccordance with the theory of continuum damage mechanics and the traditional use of FLDs,usually employed as an analysis of the finite element solution in which the neckingphenomenon is carried out in the framework of Marciniak-Kuczinsky (M-K) analysis coupledwith the conventional theory of plasticity. The previous strategies and corresponding resultsare compared with two experimental failure cases, in order to test and validate each of thesestrategies
Subject: Engenharia mecânica, Engenharia mecânica
Mechanical engineering, Mechanical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia mecânica
Engineering and technology::Mechanical engineering
Source: IDDRG 2007 - International Deep Drawing Research Group Conference
Document Type: Artigo em Livro de Atas de Conferência Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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