Hello @Calc_em ,
I have a simulation constraint defined as follows:
1.The bottom face is fixed.
2.The temperature of the bottom face is set to 353K.
3.The initial temperature for all faces is 323K.
4.Heat flux and ambient temperature are specified as 20W/m^2K and 323K, respectively.
5.The thermal expansion coefficients are given as -0.0032204, -0.0014441, -0.0134487.
6.The material being used is steel with a Young’s Modulus of 200 GPa and a Poisson’s ratio of 0.3.
Below is the input format I have written for the mentioned constraints. Is it correct?
** MaterialSolid
*MATERIAL, NAME=MaterialSolid
*ELASTIC
200000, 0.3
*EXPANSION
-0.0032204, -0.0014441, -0.0134487
*Initial conditions, Type=Temperature
ConstraintFixed, 79.85
** Sections
*SOLID SECTION, ELSET=MaterialSolidSolid, MATERIAL=MaterialSolid
** At least one step is needed to run an CalculiX analysis of FreeCAD
*STEP, NLGEOM
*STATIC
** Fixed Constraints
** ConstraintFixed
*BOUNDARY
ConstraintFixed,1
ConstraintFixed,2
ConstraintFixed,3
*TEMPERATURE
NALL, 49.85
*FILM
Evolumes, F1, 49.85, 20
** Outputs → frd file
*NODE FILE
U
*EL FILE
S, E, PEEQ
** outputs → dat file
** reaction forces for Constraint fixed
*NODE PRINT, NSET=ConstraintFixed, TOTALS=ONLY
RF
*END STEP