FEM Mesh CalculiX: Difference between revisions
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== FEM Element Types CalculiX == |
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{{TOCright}} |
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For detailed information about FreeCAD FEM Element Types checkt the [[FEM_Mesh]] and [[FEM_Element_Types]] Wiki pages. |
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<translate> |
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<!--T:1--> |
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==== Segment element ==== |
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== FEM element types in CalculiX == |
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{| class="wikitable" style="color:green; background-color:#ffffcc;" cellpadding="5" cellspacing="0" border="1" |
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For detailed information on FreeCAD FEM elements see [[FEM Mesh|FEM Mesh]] and [[FEM Element Types|FEM Element Types]]. For CalculiX specific questions you may try the [https://calculix.discourse.group Discourse group] or the [https://discord.gg/yyuQQg5 Discord channel]. |
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=== Segment element === <!--T:2--> |
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<!--T:12--> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ '''Segment element from FreeCAD to CalculiX -- node assignment''' |
|+ '''Segment element from FreeCAD to CalculiX -- node assignment''' |
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| [[File:Seg2.png|250px]] || [[File:Seg3--ccx.png|250px]] |
| [[File:Seg2.png|250px]] || [[File:Seg3--ccx.png|250px]] |
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||FreeCAD || |
||FreeCAD → CalculiX, Nodes || |
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|| N1, N2 || N1, |
|| N1, N2 || N1, N3, N2 |
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||CalculiX || |
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|| N1, N2 || N1, N3, N2 |
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||Code || |
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|| (0)(1) || (0)(2)(1) |
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=== Triangle element === <!--T:3--> |
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<!--T:13--> |
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<p> <br /> </p> |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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==== Triangle element ==== |
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{| class="wikitable" style="color:green; background-color:#ffffcc;" cellpadding="5" cellspacing="0" border="1" |
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|+ '''Triangle element from FreeCAD to CalculiX -- node assignment''' |
|+ '''Triangle element from FreeCAD to CalculiX -- node assignment''' |
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| [[File:Tria3--ccx.png|250px]] || [[File:Tria6--ccx.png|250px]] |
| [[File:Tria3--ccx.png|250px]] || [[File:Tria6--ccx.png|250px]] |
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||FreeCAD || |
||FreeCAD → CalculiX, Nodes || |
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|| N1, N2, N3 || N1, N2, N3, N4, N5, N6 |
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||CalculiX || |
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|| N1, N2, N3 || N1, N2, N3, N4, N5, N6 |
|| N1, N2, N3 || N1, N2, N3, N4, N5, N6 |
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||Code || |
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|| (0)(1)(2) || (0)(1)(2)(3)(4)(5) |
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<p> <br /> </p> |
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=== Quadrangle element === <!--T:4--> |
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TODO --> find normal direction of FreeCAD quad and update node table |
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<!--T:5--> |
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{| class="wikitable" style="color:green; background-color:#ffffcc;" cellpadding="5" cellspacing="0" border="1" |
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{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ '''Quadratic element from FreeCAD to CalculiX -- node assignment''' |
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|+ '''Quadrangle element from FreeCAD to CalculiX -- node assignment''' |
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| quad4 FreeCAD nodes || quad8 FreeCAD nodes |
| quad4 FreeCAD nodes || quad8 FreeCAD nodes |
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| [[File:Quad4--fc.png|250px]] || [[File:Quad8--fc.png|250px]] |
| [[File:Quad4--fc.png|250px]] || [[File:Quad8--fc.png|250px]] |
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|| quad4 FreeCAD nodes element rotated || quad8 FreeCAD nodes element rotated |
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| [[File:Quad4--fc_rotated.png|250px]] || [[File:Quad8--fc_rotated.png|250px]] |
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|| quad4 (S4) CalculiX nodes || quad8 (S8) CalculiX nodes |
|| quad4 (S4) CalculiX nodes || quad8 (S8) CalculiX nodes |
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| [[File:Quad4--ccx.png|250px]] || [[File:Quad8--ccx.png|250px]] |
| [[File:Quad4--ccx.png|250px]] || [[File:Quad8--ccx.png|250px]] |
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||FreeCAD || |
||FreeCAD → CalculiX, Nodes || |
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|| N1, N2, N3, N4 || N1, N2, N3, N4, N5, N6, N7, N8 |
|| N1, N2, N3, N4 || N1, N2, N3, N4, N5, N6, N7, N8 |
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||CalculiX || |
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|| N1, N4, N3, N2 || N1, N4, N3, N2, N8, N7, N6, N5 |
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||Code || |
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|| (0)(3)(2)(1) || (0)(3)(2)(1)(7)(6)(5)(4) |
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=== Tetrahedron element === <!--T:6--> |
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<!--T:7--> |
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<p> <br /> </p> |
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The following node order is not implemented ! TODO: verify node order (do not forget getccxVolumesByFace()). |
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<!--T:8--> |
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==== Tetrahedron element ==== |
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{| class="wikitable" style="color: |
{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ '''Tetrahedron element from FreeCAD to CalculiX -- node assignment''' |
|+ '''Tetrahedron element from FreeCAD to CalculiX -- node assignment''' |
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| [[File:Tetra4--fc.png|250px]] || [[File:Tetra10--fc.png|250px]] |
| [[File:Tetra4--fc.png|250px]] || [[File:Tetra10--fc.png|250px]] |
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|| tetra4 FreeCAD nodes element rotated || tetra10 FreeCAD nodes element rotated |
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| [[File:Tetra4--fc_rotated.png|250px]] || [[File:Tetra10--fc_rotated.png|250px]] |
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|| tetra4 (C3D4) CalculiX nodes || tetra10 (C3D10) CalculiX nodes |
|| tetra4 (C3D4) CalculiX nodes || tetra10 (C3D10) CalculiX nodes |
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| [[File:Tetra4--ccx.png|250px]] || [[File:Tetra10--ccx.png|250px]] |
| [[File:Tetra4--ccx.png|250px]] || [[File:Tetra10--ccx.png|250px]] |
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||FreeCAD || |
||FreeCAD → CalculiX, Nodes || |
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|| N2, N3, N4, N1 || N2, N3, N4, N1, N6, N10, N9, N5, N7, N8 |
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||CalculiX || |
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|| N1, N3, N2, N4 || N1, N3, N2, N4, N7, N6, N5, N8, N10, N9 |
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||Code || |
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||(0)(2)(1)(3) || (0)(2)(1)(3)(6)(5)(4)(7)(9)(8) |
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=== Hexahedron element === <!--T:9--> |
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<p> <br /> </p> |
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<!--T:14--> |
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==== Hexahedron element ==== |
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{| class="wikitable" style="color: |
{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ '''Hexahedron element from FreeCAD to CalculiX -- node assignment''' |
|+ '''Hexahedron element from FreeCAD to CalculiX -- node assignment''' |
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| [[File:Hexa8--fc.png|250px]] || [[File:Hexa20--fc.png|250px]] |
| [[File:Hexa8--fc.png|250px]] || [[File:Hexa20--fc.png|250px]] |
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|| hexa8 FreeCAD nodes element rotated || hexa20 FreeCAD nodes element rotated |
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| [[File:Hexa8--fc_rotated.png|250px]] || [[File:Hexa20--fc_rotated.png|250px]] |
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|| hexa8 (C3D8) CalculiX nodes || hexa20 (C3D20) CalculiX nodes |
|| hexa8 (C3D8) CalculiX nodes || hexa20 (C3D20) CalculiX nodes |
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| [[File:Hexa8--ccx.png|250px]] || [[File:Hexa20--ccx.png|250px]] |
| [[File:Hexa8--ccx.png|250px]] || [[File:Hexa20--ccx.png|250px]] |
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||FreeCAD || |
||FreeCAD → CalculiX, Nodes || |
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||N6, N7, N8, N5, N2, N3, N4, N1 || N6, N7, N8, N5, N2, N3, N4, N1, N14, N15, N16, N13, N10, N11, N12, N9, N18, N19, N20, N17 |
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||CalculiX || |
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||N1, N4, N3, N2, N5, N8, N7, N6 || N1, N4, N3, N2, N5, N8, N7, N6, N12, N11, N10, N9, N16, N15, N14, N13, N17, N20, N19, N18 |
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||Code || |
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||(0)(3)(2)(1)(4)(7)(6)(5) || (0)(3)(2)(1)(4)(7)(6)(5)(11)(10)(9)(8)(15)(14)(13)(12)(16)(19)(18)(17) |
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=== Pentahedron element === <!--T:10--> |
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<p> <br /> </p> |
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<!--T:15--> |
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==== Pentahedron element ==== |
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{| class="wikitable" style="color: |
{| class="wikitable" style="color:black; background-color:#eeeeef;" cellpadding="5" cellspacing="0" border="1" |
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|+ '''Pentahedron element from FreeCAD to CalculiX -- node assignment''' |
|+ '''Pentahedron element from FreeCAD to CalculiX -- node assignment''' |
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| [[File:penta6--fc.png|250px]] || [[File:Penta15--fc.png|250px]] |
| [[File:penta6--fc.png|250px]] || [[File:Penta15--fc.png|250px]] |
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|| penta6 FreeCAD nodes element rotated || penta15 FreeCAD nodes element rotated |
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| [[File:penta6--fc_rotated.png|250px]] || [[File:Penta15--fc_rotated.png|250px]] |
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|| penta6 (C3D6) CalculiX nodes || penta15 (C3D15) CalculiX nodes |
|| penta6 (C3D6) CalculiX nodes || penta15 (C3D15) CalculiX nodes |
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| [[File:Penta6--ccx.png|250px]] || [[File:Penta15--ccx.png|250px]] |
| [[File:Penta6--ccx.png|250px]] || [[File:Penta15--ccx.png|250px]] |
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||FreeCAD || |
||FreeCAD → CalculiX, Nodes || |
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|| N5, N6, N4, N2, N3, N1 || N5, N6, N4, N2, N3, N1, N11, N12, N10, N8, N9, N7, N14, N15, N13 |
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||CalculiX || |
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|| N1, N3, N2, N4, N6, N5 || N1, N3, N2, N4, N6, N5, N9, N8, N7, N12, N11, N10, N13, N15, N14 |
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||Code || |
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||(0)(2)(1)(3)(5)(4) || (0)(2)(1)(3)(5)(4)(8)(7)(6)(11)(10)(9)(12)(14)(13) |
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== Related == <!--T:16--> |
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<p> <br /> </p> |
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<!--T:17--> |
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* [[FEM_CalculiX|FEM CalculiX]] page |
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* [[FEM_Preferences#CalculiX|CalculiX preferences]] dialog menu in the FEM Workbench preferences menu |
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</translate> |
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{{FEM Tools navi{{#translation:}}}} |
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{{Userdocnavi{{#translation:}}}} |
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[[Category:Developer{{#translation:}}]] |
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[[Category:Poweruser_Documentation{{#translation:}}]] |
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{{clear}} |
Latest revision as of 09:18, 30 November 2023
FEM element types in CalculiX
For detailed information on FreeCAD FEM elements see FEM Mesh and FEM Element Types. For CalculiX specific questions you may try the Discourse group or the Discord channel.
Segment element
seg2 FreeCAD nodes | seg3 FreeCAD nodes |
seg2 (B31) CalculiX nodes | seg3 (B32) CalculiX nodes |
FreeCAD → CalculiX, Nodes | |
N1, N2 | N1, N3, N2 |
Triangle element
Quadrangle element
Tetrahedron element
The following node order is not implemented ! TODO: verify node order (do not forget getccxVolumesByFace()).
Hexahedron element
Pentahedron element
Related
- FEM CalculiX page
- CalculiX preferences dialog menu in the FEM Workbench preferences menu
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