Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/90366
Título: | Study on the influence of the strain rate sensitivity on the springback of the AA5086 alloy under warm forming conditions |
Autor(es): | Neto, D. M. Oliveira, M. C. Alves, J. L. Menezes, L. F. |
Data: | 1-Jan-2021 |
Editora: | IOP Publishing Ltd |
Revista: | IOP Conference Series-Materials Science and Engineering |
Citação: | D. M. Neto et al 2021 IOP Conf. Ser.: Mater. Sci. Eng. 1157 012043 |
Resumo(s): | Warm forming processes have been successfully applied to overcome some important drawbacks of the aluminium alloys, such as poor formability and large springback. The virtual try-out of this type of processes requires the accurate prediction of springback. The process conditions considered in this work are the ones established for the benchmark 3 - Springback of an Al-Mg alloy in warm forming conditions, proposed under the Numisheet 2016 international conference. The material under analysis is the AA5086-H111 aluminium alloy. Its mechanical behaviour is described by a Hockett-Sherby hardening law and an orthotropic yield function. The numerical analysis of the warm forming process is performed considering different yield criteria, using a strain rate-dependent flow rule. Although the material presents a positive strain rate sensitivity at 240 degrees C, the influence of the punch velocity on the punch force evolution is negligible due to the impact of the punch velocity on the temperature distribution in the cup. Since the hoop stress distribution on the ring (before splitting) is only slightly influenced by the punch velocity, the impact of the punch velocity on the springback is also negligible. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/90366 |
DOI: | 10.1088/1757-899X/1157/1/012043 |
ISSN: | 1757-8981 |
Versão da editora: | https://iopscience.iop.org/article/10.1088/1757-899X/1157/1/012043 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CMEMS - Artigos em livros de atas/Papers in proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Neto_2021_IOP_Conf._Ser.__Mater._Sci._Eng._1157_012043.pdf | 1,66 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons