B modeling ============== Simulation 1 ------------ This is a thermomechanical test with zero imposed deformation along axis :math:`x`. The test is performed on a hardware point with the SIMU_POINT_MAT command. The temperature varies from :math:`{T}_{0}=20°C` to :math:`{T}_{\mathrm{max}}=500°C`. The transition consists of NCAL steps. The reference temperature is :math:`{T}_{\mathrm{Ref}}=20°C`. Simulation 2 ------------ It's about looping on NCALcalculs mechanics. For each calculation :math:`i`, the imposed load consists of the thermal deformation :math:`{\varepsilon }_{\mathrm{xx}}=-{\varepsilon }_{\mathrm{th}}=-\alpha (T)({T}_{i}-{T}_{\mathrm{Ref}})`. The initial load consists of the deformations, stresses and internal variables from the previous mechanical calculation. Behavioral law and material parameters -------------------------------------------- The law of behavior tested is' ELAS_VMIS_LINE ', is documented in the documentation [:ref:`R7.02.03 `]. It is a "non-linear" law of elastic behavior (law of HENCKY) of VON MISES with linear isotropic work hardening. The elastic parameters are as follows: :math:`E(T)`, :math:`\nu (T)`, :math:`\alpha (T)`, :math:`{\sigma }_{y}(T)`, :math:`{E}_{T}(T)` Values of the parameters used: .. csv-table:: "Parameter", ":math:`T=20°C` "," :math:`T=500°C`" ":math:`E(T)` "," :math:`200000.` MPa "," :math:`100000.` MPa" ":math:`\nu (T)` "," :math:`0.` "," :math:`0.`" ":math:`\alpha (T)` "," :math:`1.\times {10}^{-4}` :math:`{K}^{-1}` "," :math:`2.\times {10}^{-4}` :math:`{K}^{-1}`" ":math:`{\sigma }_{y}(T)` "," :math:`1000.` MPa "," :math:`800.` MPa" ":math:`{E}_{T}(T)` "," :math:`2000.` MPa "," :math:`1000.` MPa" Tested sizes and results ------------------------------ Validation is carried out by comparing the fields calculated at each step of the transient on the one hand and the result of a mechanical calculation on the other hand. The command used is TEST_TABLE which tests the reference value against the calculated value. The reference value being the field component extracted at a given time :math:`i` from the first thermomechanical simulation performed over NCAL times. The calculated value is the one obtained at the end of the mechanical calculation :math:`i+1` of the loop on the NCAL. .. csv-table:: "Result at serial number i", "Name of the tested parameter", "Reference type", "Reference value", "tolerance" "RESU_i "," NOM_PARA ", "", "VALE_REF "," TOLE" "RESU_19 "," VMIS "," NON_REGRESSION ", "888. "," 0.1%" "RESU_19 "," TRACE "," NON_REGRESSION ", "-888. "," 0.1%" "RESU_19 ", "V1"," NON_REGRESSION ", "0.08712"," 0.1%"