FEM ConstraintPressure: Difference between revisions
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{{Docnav |
{{Docnav |
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|[[FEM_ConstraintForce|Constraint force]] |
|[[FEM_ConstraintForce|Constraint force]] |
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|[[ |
|[[FEM_ConstraintCentrif|Constraint centrif]] |
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|[[ |
|[[FEM_Workbench|FEM]] |
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|IconL=FEM_ConstraintForce.svg |
|IconL=FEM_ConstraintForce.svg |
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|IconR= |
|IconR=FEM_ConstraintCentrif.svg |
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|IconC=Workbench_FEM.svg |
|IconC=Workbench_FEM.svg |
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}} |
}} |
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{{GuiCommand |
{{GuiCommand |
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|Name=FEM ConstraintPressure |
|Name=FEM ConstraintPressure |
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|MenuLocation=Model → Mechanical |
|MenuLocation=Model → Mechanical boundary conditions and loads → Pressure load |
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|Workbenches=[[ |
|Workbenches=[[FEM_Workbench|FEM]] |
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|SeeAlso=[[FEM_ConstraintForce|FEM Constraint force]] |
|SeeAlso=[[FEM_ConstraintForce|FEM Constraint force]] |
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}} |
}} |
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<!--T:6--> |
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Applies a pressure |
Applies a pressure load to a face. |
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==Usage== <!--T:3--> |
==Usage== <!--T:3--> |
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# There are several ways to invoke the command: |
# There are several ways to invoke the command: |
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#* Press the {{Button|[[Image:FEM_ConstraintPressure.svg|16px]] [[FEM_ConstraintPressure| |
#* Press the {{Button|[[Image:FEM_ConstraintPressure.svg|16px]] [[FEM_ConstraintPressure|Pressure load]]}} button. |
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#* Select the {{MenuCommand|Model → Mechanical |
#* Select the {{MenuCommand|Model → Mechanical boundary conditions and loads → [[Image:FEM_ConstraintPressure.svg|16px]] Pressure load}} option from the menu. |
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# Click on {{Button|Add |
# Click on {{Button|Add}} and select face in the [[3D_view|3D view]]. |
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# Edit appropriate window to specify pressure load in MPa. |
# Edit appropriate window to specify pressure load in MPa. |
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# Tick box to reverse direction if necessary. |
# Tick box to reverse direction if necessary. |
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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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<!--T:13--> |
<!--T:13--> |
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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. |
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* Pressure on faces: https://tracker.freecadweb.org/view.php?id=3050 |
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* 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 |
{{Docnav |
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|[[FEM_ConstraintForce|Constraint force]] |
|[[FEM_ConstraintForce|Constraint force]] |
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|[[ |
|[[FEM_ConstraintCentrif|Constraint centrif]] |
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|[[ |
|[[FEM_Workbench|FEM]] |
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|IconL=FEM_ConstraintForce.svg |
|IconL=FEM_ConstraintForce.svg |
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|IconR= |
|IconR=FEM_ConstraintCentrif.svg |
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|IconC=Workbench_FEM.svg |
|IconC=Workbench_FEM.svg |
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}} |
}} |
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{{FEM Tools navi{{#translation:}}}} |
{{FEM Tools navi{{#translation:}}}} |
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{{Userdocnavi{{#translation:}}}} |
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{{clear}} |
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
- 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.
- Click on Add and select face in the 3D view.
- Edit appropriate window to specify pressure load in MPa.
- 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.
FEM
- Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electromagnetic: Electrostatic potential, Current density, Magnetization
- 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
- Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub