FEM ConstraintPressure: Difference between revisions

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{{Docnav
{{Docnav|[[FEM_ConstraintForce|Constraint force]]|[[FEM_ConstraintSelfWeight|Constraint self weight]]|[[FEM_Module|FEM]]|IconL=FEM_ConstraintForce.png|IconC=Workbench_FEM.svg|IconR=FEM_ConstraintSelfWeight.png}}
|[[FEM_ConstraintForce|Constraint force]]
|[[FEM_ConstraintCentrif|Constraint centrif]]
|[[FEM_Workbench|FEM]]
|IconL=FEM_ConstraintForce.svg
|IconR=FEM_ConstraintCentrif.svg
|IconC=Workbench_FEM.svg
}}


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{{GuiCommand
{{GuiCommand|Name=FEM ConstraintPressure|MenuLocation=Model → Mechanical Constraints → Constraint pressure||Workbenches=[[Fem Workbench|FEM]]|Shortcut=|SeeAlso=[[FEM_tutorial|FEM tutorial]]}}
|Name=FEM ConstraintPressure
|MenuLocation=Model → Mechanical boundary conditions and loads → Pressure load
|Workbenches=[[FEM_Workbench|FEM]]
|SeeAlso=[[FEM_ConstraintForce|FEM Constraint force]]
}}


==Description== <!--T:2-->
==Description== <!--T:2-->


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Applies a pressure constraint to a face.
Applies a pressure load to a face.


==How to use== <!--T:3-->
==Usage== <!--T:3-->


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# There are several ways to invoke the command:
#Click on [[Image:FEM ConstraintPressure.png|32px]] or choose {{KEY|Model}} → '''Mechanical Constraints''' → {{KEY|[[Image:FEM ConstraintPressure.png|32px]] Constraint pressure}} from the top menu.
#* Press the {{Button|[[Image:FEM_ConstraintPressure.svg|16px]] [[FEM_ConstraintPressure|Pressure load]]}} button.
#Click on {{KEY| Add reference}} and select face in 3D view
#* Select the {{MenuCommand|Model → Mechanical boundary conditions and loads → [[Image:FEM_ConstraintPressure.svg|16px]] Pressure load}} option from the menu.
#Edit appropriate window to specify pressure load in MPa
# Click on {{Button|Add}} and select face in the [[3D_view|3D view]].
#Tick box to reverse direction if necessary
# Edit appropriate window to specify pressure load in MPa.

# Tick box to reverse direction if necessary.
==Limitations== <!--T:4-->



==Notes== <!--T:5-->
==Notes== <!--T:5-->


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Distribution of pressure on face is always uniform and always perpendicular to face.
* Distribution of the pressure on a face is always uniform and always perpendicular to the face.


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* {{VersionMinus|0.21}}: Pressure load can be applied to shells but only when [[FEM_MeshGmshFromShape|Gmsh]] is used for meshing and group meshing is set to true. It is hardcoded as true so the user doesn't have to worry about that. However, due to a bug, pressure load may require remeshing to work on shells.
* This feature uses the [https://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node190.html *DLOAD card in CalculiX].


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{{Docnav|[[FEM_ConstraintForce|Constraint force]]|[[FEM_ConstraintSelfWeight|Constraint self weight]]|[[FEM_Module|FEM]]|IconL=FEM_ConstraintForce.png|IconC=Workbench_FEM.svg|IconR=FEM_ConstraintSelfWeight.png}}


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{{Docnav
{{FEM Tools navi}}
|[[FEM_ConstraintForce|Constraint force]]
|[[FEM_ConstraintCentrif|Constraint centrif]]
|[[FEM_Workbench|FEM]]
|IconL=FEM_ConstraintForce.svg
|IconR=FEM_ConstraintCentrif.svg
|IconC=Workbench_FEM.svg
}}


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{{Userdocnavi}}
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{{FEM Tools navi{{#translation:}}}}
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{{Userdocnavi{{#translation:}}}}

Latest revision as of 08:27, 27 February 2024

FEM ConstraintPressure

Menu location
Model → Mechanical boundary conditions and loads → Pressure load
Workbenches
FEM
Default shortcut
None
Introduced in version
-
See also
FEM Constraint force

Description

Applies a pressure load to a face.

Usage

  1. There are several ways to invoke the command:
    • Press the Pressure load button.
    • Select the Model → Mechanical boundary conditions and loads → Pressure load option from the menu.
  2. Click on Add and select face in the 3D view.
  3. Edit appropriate window to specify pressure load in MPa.
  4. Tick box to reverse direction if necessary.

Notes

  • Distribution of the pressure on a face is always uniform and always perpendicular to the face.
  • version 0.21 and below: Pressure load can be applied to shells but only when Gmsh is used for meshing and group meshing is set to true. It is hardcoded as true so the user doesn't have to worry about that. However, due to a bug, pressure load may require remeshing to work on shells.
  • This feature uses the *DLOAD card in CalculiX.