1D Property Section Types

When you define a 1D property, you have to select a type of beam section. The different types of beam section are:

Related Topics
Creating 1D Properties
Beam Section Orientation

Rod

You can choose this option for any section that works in traction/strain. You then need to specify the section area in the Section area box.

Circular Beam




  • R is the radius.

Tubular Beam




  • Ri is the inner radius.
  • Ro is the outer radius

Rectangular Beam




  • L is the base.
  • H is the height.

Thin Box Beam




  • Li is the inner width.
  • Hi is the inner height.
  • Le is the outer width.
  • He is outer height.

Thin U Beam




  • L is the width.
  • H is the height.
  • T is the thickness.

Thin I Beam




  • L is the width.
  • H is the height.
  • Tl is the thickness associated to the width.
  • Th is the thickness associated to the height.

Thin T Beam




  • L is the width.
  • H is the height.
  • Tl is the thickness associated to the width.
  • Th is the thickness associated to the height.

Thin X Beam




  • L is the width.
  • H is the height.
  • Tl is the thickness associated to the width.
  • Th is the thickness associated to the height.

User-defined Beam

This option works for any type of section. You have to specify the following characteristics:

  • S is the section area.
  • Ix, Iy, Iz are the three components of the inertia matrix of the beam expressed in the principal axis of the beam (axis in which the matrix is diagonal).
    • Ix is the torsion coefficient.
    • Iy is the area moment of inertia in the XZ-plane.
    • Iz is the area moment of inertia in the XY-plane.
  • Shear center Y is the Y-coordinate of the shear center in the section axis, centered at the center of gravity of the section.
  • Shear center Z is the Z-coordinate of the shear center in the section axis, centered at the center of gravity of the section.
  • Shear ratio XY is the ratio between the cross-sectional area (A) and the shear area (Ay), area section that works in shearing in the XY-plane (case of a short beam). This ratio should be greater than one.

    Shear ratio XY = A / Ay

  • Shear ratio XZ is the ratio between the cross-sectional area (A) and the shear area (Az), area section that works in shearing in the XZ-plane (case of a short beam). This ratio should be greater than one.

    Shear ratio XZ = A / Az

Important: The availability of this option depends on your available licenses. See Licensing.

Beam from Surface

This option works for any type of section. You have to select a surface.

Important: The availability of this option depends on your available licenses. See Licensing.