Choosing a beam cross-section

The choice of cross-section is determined by the geometry of the cross-section and its behavior. A beam's cross-section:

  • can be solid or thin-walled;

  • if thin-walled, can be open or closed; and

  • can be defined by choosing from the Abaqus cross-section library; by specifying geometric quantities such as area, moments of inertia, and torsional constant; or by using a mesh of special two-dimensional elements, for which geometric quantities are calculated numerically.

You must consider whether the section should be treated as a solid cross-section or as a thin-walled cross-section. This choice determines the basis upon which Abaqus computes the axial and shear strains at each point in the section.

The following topics are discussed:

Related Topics
About beam modeling
Beam cross-section library
In Other Guides
Meshed beam cross-sections
Defining profiles