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Techniques for the analysis of metalworking processes using enhanced-strain elements

Title
Techniques for the analysis of metalworking processes using enhanced-strain elements
Type
Article in International Conference Proceedings Book
Year
2001
Authors
de sa, jmac
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areias, pma
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jorge, rmn
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FEUP
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valente, raf
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Conference proceedings International
Pages: 155-160
Proceedings of the 7th International Conference on Numerical Methods in Industrial Forming Processes - NUMIFORM 2001
Toyohashi, Japan, 18 a 20 de Junho de 2001
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Publicação em ISI Web of Knowledge ISI Web of Knowledge - 0 Citations
Scientific classification
FOS: Natural sciences > Mathematics
Other information
Authenticus ID: P-000-XWG
Resumo (PT): Neste trabalho propôe-se uma formulação para problemas axisimétricos com grandes deformações baseada numa formulação por elementos finitos mistos e com deformações acrescentadas. De modo a atenuar os efeitos de distorção da malha seguiu-se uma estratégia de reposição nodal. A formulação segue o procedimento proposto recentemente para grandes deformações em regime não linear do material, sendo o esquema de reposição nodal descrito no presente trabalho, bem como a respectiva transferência de variáveis. Apresentam-se alguns exemplos ilustrativos, de modo a mostrar a eficiência das metodologias propostas.
Abstract (EN): In the presented work, the authors propose a mixed enhanced finite element formulation for large strain axisymmetric problems, along with a strategy for node reposition to attenuate mesh distortion. The finite element formulation follows from a recently proposed mixed-enhanced procedure specially suited for large strain plasticity, and the node reposition scheme is here described, along with the internal variable transfer. Illustrative examples are solved, showing the effectiveness of the proposed solutions.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 6
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