FEM ConstraintFixed: Difference between revisions

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Creates a FEM constraint for a fixed geometrical entity by locking all the available degrees of freedom of the nodes underlying the selected geometrical entity (6 DOFs for beam and shell elements, 3 for solid elements).
Creates a FEM boundary condition for a fixed geometrical entity by locking all the available degrees of freedom of the nodes underlying the selected geometrical entity (6 DOFs for beam and shell elements, 3 for solid elements).


==Usage== <!--T:3-->
==Usage== <!--T:3-->
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#* Press the {{Button|[[Image:FEM_ConstraintFixed.svg|16px]] [[FEM_ConstraintFixed|Fixed boundary condition]]}} button.
#* Press the {{Button|[[Image:FEM_ConstraintFixed.svg|16px]] [[FEM_ConstraintFixed|Fixed boundary condition]]}} button.
#* Select the {{MenuCommand|Model → Mechanical boundary conditions and loads → [[Image:FEM_ConstraintFixed.svg|16px]] Fixed boundary condition}} option from the menu.
#* Select the {{MenuCommand|Model → Mechanical boundary conditions and loads → [[Image:FEM_ConstraintFixed.svg|16px]] Fixed boundary condition}} option from the menu.
# In the [[3D_view|3D view]] select the object the constraint should be applied to, which can be a vertex (corner), edge, or face.
# In the [[3D_view|3D view]] select the object the boundary condition should be applied to, which can be a vertex (corner), edge, or face.


==Limitations== <!--T:4-->
==Limitations== <!--T:4-->


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You cannot mix object types within the same constraint. Use a separate fixed constraint for each object type.
You cannot mix object types within the same boundary condition. Use a separate fixed boundary condition for each object type.

==Notes== <!--T:13-->

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* This feature uses the [https://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node163.html *BOUNDARY card in CalculiX].





Latest revision as of 09:05, 27 January 2024

FEM ConstraintFixed

Menu location
Model → Mechanical boundary conditions and loads → Fixed boundary condition
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM Constraint contact

Description

Creates a FEM boundary condition for a fixed geometrical entity by locking all the available degrees of freedom of the nodes underlying the selected geometrical entity (6 DOFs for beam and shell elements, 3 for solid elements).

Usage

  1. There are several ways to invoke the command:
    • Press the Fixed boundary condition button.
    • Select the Model → Mechanical boundary conditions and loads → Fixed boundary condition option from the menu.
  2. In the 3D view select the object the boundary condition should be applied to, which can be a vertex (corner), edge, or face.

Limitations

You cannot mix object types within the same boundary condition. Use a separate fixed boundary condition for each object type.

Notes