Publicação
Finite element prediction of ductile fracture in sheet metal forming processes
| Resumo: | In this contribution, Lemaitre's ductile damage model is coupled with Hill's orthotropic plasticity criterion. The coupling between damaging and material behaviour is accounted for within the framework of Continuum Damage Mechanics (CDM). The resulting constitutive equations are implemented in the Abaqus/Explicit code, for the prediction of fracture onset in sheet metal forming processes. The damage evolution law takes into account the important effect of micro-crack closure, which dramatically decreases the rate of damage growth under compressive paths. |
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| Autores principais: | Pedro Manuel Cardoso Teixeira |
| Outros Autores: | Abel Dias dos Santos; Francisco Manuel Andrade Pires; José Manuel de Almeida César de Sá |
| Assunto: | Engenharia mecânica, Engenharia mecânica Mechanical engineering, Mechanical engineering |
| Ano: | 2006 |
| País: | Portugal |
| Tipo de documento: | livro |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Porto |
| Idioma: | inglês |
| Origem: | Repositório Aberto da Universidade do Porto |
| Resumo: | In this contribution, Lemaitre's ductile damage model is coupled with Hill's orthotropic plasticity criterion. The coupling between damaging and material behaviour is accounted for within the framework of Continuum Damage Mechanics (CDM). The resulting constitutive equations are implemented in the Abaqus/Explicit code, for the prediction of fracture onset in sheet metal forming processes. The damage evolution law takes into account the important effect of micro-crack closure, which dramatically decreases the rate of damage growth under compressive paths. |
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