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Author(s): Pedro Manuel Cardoso Teixeira
Abel Dias dos Santos
José Manuel de Almeida César de Sá
Augusto Duarte Campos Barata da Rocha
Title: Comparative study on flow localization using a damage model and a post-processing plastic instability code for prediction of failure in sheet metal forming
Issue Date: 2007
Abstract: Formability prediction in sheet metal forming processes is an importantdemand from industry, since such assessment defines the success of a stamping process.The ability to predict the formability limit is of major importance in order to optimize theprocess, examine the influence of each parameter on the necking occurrence andconsequently to improve the press performance. In this work, Lemaitres ductile damagemodel is implemented in Abaqus /Explicit code in order to compare the performance ofthis coupled approach with the traditional use of FLDs. These are usually employed as ana posteriori analysis of the finite element solution in which the necking phenomenon iscarried out in the framework of Marciniak-Kuczinsky analysis coupled with the theory ofplasticity. The previous strategies are compared with an experimental failure case.
Subject: Engenharia mecânica, Engenharia mecânica
Mechanical engineering, Mechanical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia mecânica
Engineering and technology::Mechanical engineering
Source: Plasticity 2007 - 13th International Symposium on Plasticity
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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