doc:user:elements:volumes:thixo_iso_hypo_materials
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doc:user:elements:volumes:thixo_iso_hypo_materials [2013/07/11 16:31] – [ThixoEvpIsoHHypoMaterial] joris | doc:user:elements:volumes:thixo_iso_hypo_materials [2016/03/30 15:23] (current) – external edit 127.0.0.1 | ||
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+ | ====== Thixotropic materials ====== | ||
+ | ===== ThixoEvpIsoHHypoMaterial ===== | ||
+ | |||
+ | === Description === | ||
+ | |||
+ | Elasto-visco-plastic law with nonlinear hardening, temperature set in a way specific for thixotropic materials. | ||
+ | |||
+ | Stresses are integrated with a radial return method. The stiffness tangent matrix is analytic and numerical | ||
+ | |||
+ | The yield stress must verify the constraint: | ||
+ | |||
+ | $$ | ||
+ | f=\overline{\sigma}-\sigma_{yield}=0 | ||
+ | $$ | ||
+ | |||
+ | where $ \overline{\sigma}$ is the equivalent stress computed and $ \sigma_{yield} $ is a [[doc: | ||
+ | |||
+ | === Parameters === | ||
+ | ^ | ||
+ | | Density | ||
+ | | Young modulus | ||
+ | | Poisson ratio | '' | ||
+ | | Thermal expansion | ||
+ | | Number of the material law which defines the yield stress $\sigma_{yield}$| | ||
+ | | Evolution law of the material temperature | ||
+ | | Number of the plastic criterion | ||
+ | | Objectivity Method | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | |||
+ | ===== ThixoTmEvpIsoHHypoMaterial ===== | ||
+ | |||
+ | === Description === | ||
+ | |||
+ | Same as '' | ||
+ | |||
+ | === Parameters === | ||
+ | ^ | ||
+ | | Solid phase density | ||
+ | | Liquid phase density | ||
+ | | Young modulus | ||
+ | | Poisson ratio | '' | ||
+ | | Thermal expansion | ||
+ | | Number of the material law which defines the yield stress | ||
+ | | Conductivity | ||
+ | | Solid phase heat capacity | ||
+ | | Solid phase heat capacity | ||
+ | | Dissipated thermoelastic power fraction | ||
+ | | Dissipated (visco)plastic power fraction (Taylor-Quinney factor) | ||
+ | | Latent heat | '' | ||
+ | | Number of the plastic criterion | ||
+ | | Objectivity method | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis | ||
+ | | Orthotropic axis |
doc/user/elements/volumes/thixo_iso_hypo_materials.txt · Last modified: 2016/03/30 15:23 by 127.0.0.1