** written by FreeCAD inp file writer for CalculiX,Abaqus meshes
** highest dimension mesh elements only.
** Nodes
*Node, NSET=Nall
** Volume elements
*Element, TYPE=C3D10, ELSET=Evolumes
*ELEMENT, TYPE=MASS  , ELSET=EM
** Define element set Eall
*ELSET, ELSET=Eall
Evolumes,EM
***********************************************************
** Element sets for materials and FEM element type (solid, shell, beam, fluid)
*ELSET,ELSET=MaterialSolidSolid
Evolumes
***********************************************************
** constraints fixed node sets
** ConstraintFixed
*NSET,NSET=ConstraintFixed
***********************************************************
** Materials
** see information about units at file end
** FreeCAD material name: CalculiX-Steel
** MaterialSolid
*MATERIAL, NAME=MaterialSolid
*ELASTIC
210000,0.3
*DENSITY
7.9E-09
*MASS,ELSET=EM
0.101936799
***********************************************************
** Sections
*SOLID SECTION, ELSET=MaterialSolidSolid, MATERIAL=MaterialSolid
***********************************************************
** At least one step is needed to run an CalculiX analysis of FreeCAD
*STEP
*FREQUENCY
10,0.0,1000000.0
***********************************************************
** Fixed Constraints
** ConstraintFixed
*BOUNDARY
ConstraintFixed,1
ConstraintFixed,2
ConstraintFixed,3
***********************************************************
** Outputs --> frd file
*NODE FILE
U
*EL FILE
S, E
** outputs --> dat file
** reaction forces for Constraint fixed
*NODE PRINT, NSET=ConstraintFixed, TOTALS=ONLY
RF
***********************************************************
*END STEP
***********************************************************
** CalculiX Input file
**   written by    --> FreeCAD 0.20.26620 (Git)
**   written on    --> Sat Jan 29 22:45:26 2022
**   file name     -->
**   analysis name --> Analysis
**
**
***********************************************************
**  About units:
**  See ccx manual, ccx does not know about any unit.
**  Golden rule: The user must make sure that the numbers they provide have consistent units.
**  The user is the FreeCAD calculix writer module ;-)
**
**  The unit system which is used at Guido Dhondt's company: mm, N, s, K
**  Since Length and Mass are connected by Force, if Length is mm the Mass is in t to get N
**  The following units are used to write to inp file:
**
**  Length: mm (this includes the mesh geometry)
**  Mass: t
**  TimeSpan: s
**  Temperature: K
**
**  This leads to:
**  Force: N
**  Pressure: N/mm^2 == MPa (Young's Modulus has unit Pressure)
**  Density: t/mm^3
**  Gravity: mm/s^2
**  Thermal conductivity: t*mm/K/s^3 == as W/m/K == kW/mm/K
**  Specific Heat: mm^2/s^2/K = J/kg/K == kJ/t/K
**