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A robust approach to model densification and crack formation in powder compaction processes

Autor
Hernandez, J.A.; Oliver, J.; Cante, J.C.; Weyler, R.
Tipus d'activitat
Article en revista
Revista
International journal for numerical methods in engineering
Data de publicació
2011-08-26
Volum
87
Número
8
Pàgina inicial
735
Pàgina final
767
DOI
https://doi.org/10.1002/nme.3130 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/13360 Obrir en finestra nova
URL
http://onlinelibrary.wiley.com/doi/10.1002/nme.3130/abstract Obrir en finestra nova
Resum
This paper deals with the question of how to efficiently integrate a constitutive model that describes the densification of powders and the potential formation of cracks in Powder Metallurgy (P/M) cold compaction processes. The analyzed model is a large strain, elastoplastic model of the Drucker–Prager/Cap type, refined to cover also the prediction of crack formation, and featuring non-conventional elements such as a density-dependent Von Mises yield surface; a parabolic plastic potential func...
Citació
Hernández, J.A. [et al.]. A robust approach to model densification and crack formation in powder compaction processes. "International journal for numerical methods in engineering", 26 Agost 2011, vol. 87, núm. 8, p. 735-767.
Grup de recerca
(MC)2 - Grup de Mecànica Computacional en Medis Continus
(MC)2 - UPC Mecànica de Medis Continus i Computacional