FEM ConstraintInitialTemperature

Constraint self weight

Constraint heatflux

FEM

FEM ConstraintInitialTemperature
Menu location
Model → Thermal boundary conditions and loads → Initial temperature
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM tutorial

Solvers
CalculiX, Elmer

Description

Defines an initial temperature for a thermo-mechanical analysis.

Usage

1. There are several ways to invoke the command:
   • Press the Initial temperature button.
   • Select the Model → Thermal boundary conditions and loads → Initial temperature option from the menu.
2. Enter an initial temperature value for the analysis.

Limitations

This tool applies the initial temperature to all nodes in the FEA model - it's not possible to select individual regions.

Notes

• This tool uses the *INITIAL CONDITIONS card in CalculiX. It is explained at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node215.html
• Initial temperature has to be defined for all thermomechanical analyses performed with CalculiX, even the steady-state ones.

Constraint self weight

Constraint heatflux

FEM

FEM

• FEM Analysis

• Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor

• Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)

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Constraints

• Electromagnetic: Electrostatic potential, Current density, Magnetization

• Fluid: Initial flow velocity, Initial pressure, Flow velocity

• Geometrical: Plane rotation, Section print, Transform

• Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight

• Thermal: Initial temperature, Heat flux, Temperature, Body heat source

• Overwrite Constants: Constant vacuum permittivity

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• Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run

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• Utilities: Clipping plane, Remove clipping planes, Open FEM examples; Mesh clear, Mesh display info

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• Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types

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