FEM ElementGeometry1D

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FEM ElementGeometry1D

Posizione nel menu
Modello → Sezione trasversale di trave
Ambiente
FEM
Avvio veloce
C B
Introdotto nella versione
-
Vedere anche
FEM tutorial

Descrizione

ElementGeometry1D is used to define cross sections for beam elements. Currently, the following types of cross sections are available: rectangular, circular and pipe.

Utilizzo

  1. There are several ways to invoke the command:
    • Press the Beam cross section button.
    • Select the Model → Element Geometry → Beam cross section option from the menu.
  2. Choose the type of cross section and specify the necessary dimensions:
    • Rectangular: width and height,
    • Circular: diameter,
    • Pipe: outer diameter and thickness.
  3. Optionally, press the Add button in the task panel and then click on the edge you want to have a prescribed cross section. If the edge selection is free, all remaining edges (whose cross section is not defined by other FEM ElementGeometry1D objects) will be automatically assigned.

Proprietà

  • DatiSection Type: specifies the type of the beam section (Rectangular, Circular or Pipe)
  • DatiCirc Diameter: diameter of circular section, used if DatiSection Type is Circular
  • DatiPipe Diameter: outer diameter of pipe section, used if DatiSection Type is Pipe
  • DatiPipe Thickness: thickness of pipe section, used if DatiSection Type is Pipe
  • DatiRect Height: height of rectangular section, used if DatiSection Type is Rectangular
  • DatiRect Width: width of rectangular section, used if DatiSection Type is Rectangular

Limitazioni

  • Other types of cross sections available in CalculiX (elliptical, box and general) are not currently supported. One can edit the input file to use them.

Note

  • For viewing results from CalculiX solver on the mesh expanded to the prescribed cross section, property Beam Shell Result Output 3D in the FEM SolverCalculixCxxtools needs to be set to True.
  • Some sections require specific element types:
    • circular section - 2nd order elements
    • pipe section - 2nd order elements with reduced integration (introduced in version 0.22: reduced integration is enabled by default for beam elements and can be switched using the Beam Reduced Integration property of the CalculiX solver)
  • This feature uses the *BEAM SECTION card in CalculiX.