doc:user:elements:volumes:thixo_iso_hypo_materials
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| doc:user:elements:volumes:thixo_iso_hypo_materials [2013/07/11 16:25] – [Matériaux thixo] joris | doc:user:elements:volumes:thixo_iso_hypo_materials [2025/07/22 11:56] (current) – [ThixoTmEvpIsoHHypoMaterial] papeleux | ||
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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 | ||
| + | | Orthotropic axis initialized by mesh construction \\ boolean : True - False (def) \\ override OrthoAxis definition | ||
| + | |||
| + | ===== 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 | ||
| + | | Orthotropic axis initialized by mesh construction \\ boolean : True - False (def) \\ override OrthoAxis definition | ||
