A micromechanical approach is set-up to analyse the increase in elastic stiffness related to development of plastic deformation (the elastoplastic coupling concept) occurring during the compaction of a ceramic powder. Numerical simulations on cubic (square for 2D) and hexagonal packings of elastoplastic cylinders and spheres validate both the variation of the elastic modulus with the forming pressure and the linear dependence of it on the relative density as experimentally found in Part I of this study, while the dependence of the Poisson's ratio on the green's density is only qualitatively explained. © 2016 Elsevier Ltd. All rights reserved.

Plastically-driven variation of elastic stiffness in green bodies during powder compaction: Part II: Micromechanical modelling / Argani, L. P.; Misseroni, Diego; Piccolroaz, Andrea; Capuani, D.; Bigoni, Davide. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - 36:9(2016), pp. 2169-2174. [10.1016/j.jeurceramsoc.2016.02.013]

Plastically-driven variation of elastic stiffness in green bodies during powder compaction: Part II: Micromechanical modelling

Argani, L. P.;Misseroni, Diego;Piccolroaz, Andrea;Bigoni, Davide
2016

Abstract

A micromechanical approach is set-up to analyse the increase in elastic stiffness related to development of plastic deformation (the elastoplastic coupling concept) occurring during the compaction of a ceramic powder. Numerical simulations on cubic (square for 2D) and hexagonal packings of elastoplastic cylinders and spheres validate both the variation of the elastic modulus with the forming pressure and the linear dependence of it on the relative density as experimentally found in Part I of this study, while the dependence of the Poisson's ratio on the green's density is only qualitatively explained. © 2016 Elsevier Ltd. All rights reserved.
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Argani, L. P.; Misseroni, Diego; Piccolroaz, Andrea; Capuani, D.; Bigoni, Davide
Plastically-driven variation of elastic stiffness in green bodies during powder compaction: Part II: Micromechanical modelling / Argani, L. P.; Misseroni, Diego; Piccolroaz, Andrea; Capuani, D.; Bigoni, Davide. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - 36:9(2016), pp. 2169-2174. [10.1016/j.jeurceramsoc.2016.02.013]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/149982
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