Scipediacontent: Scipediacontent moved page Draft Content 603326078 to Cante et al 1998a

2017-06-16T08:54:02Z

Scipediacontent moved page Draft Content 603326078 to Cante et al 1998a

Scipediacontent: Created page with "== Abstract == A numerical model, based on large strain plasticity, to simulate the uniaxial compaction of powder materials is presented. The elastic response is obtained fro..."

2017-06-16T08:45:26Z

Created page with "== Abstract == A numerical model, based on large strain plasticity, to simulate the uniaxial compaction of powder materials is presented. The elastic response is obtained fro..."

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== Abstract ==

A numerical model, based on large strain plasticity, to simulate the uniaxial compaction of powder materials is presented. The elastic response is obtained from a hyperelastic model. The plastic response represents the loss of voids and the plastic deformation oY the grains. Two parameters that evolve in terms of the relative density control the modified, Von Mises type, yield surface. A visco-plastic model to include the rate load dependency is proposed. This regularization prevents the loss of ellipticity that could occur with wrong compaction processes. Two different friction models are studied: 1 a Norton-Hoff type model and 2. a Coulomb friction model. Penalization and Lagrange multipliers methods are studied to solve the last one as well as a mixed algorithm, to implement the last model in a robust way.

== Full document ==
<pdf>Media:draft_Content_603326078RR141E.pdf</pdf>

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Cante et al 1998a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 603326078 to Cante et al 1998a

Scipediacontent: Created page with "== Abstract == A numerical model, based on large strain plasticity, to simulate the uniaxial compaction of powder materials is presented. The elastic response is obtained fro..."