*SECTION CURVATURE

Define the precurvatures and the pretorsion of the beam centerline for 3-DOF warping elements.

This option is used in conjunction with the BEAM SECTION GENERATE option to define the precurvatures and the pretorsion of the beam centerline. You use the BEAM SECTION GENERATE option to compute the properties for the specified beam elements.

This option is available only for use with 3-DOF warping elements. If this option is not used, Abaqus assumes the precurvatures and the pretorsion of the beam centerline are zero.

This page discusses:

See Also
*BEAM SECTION GENERATE
In Other Guides
Meshed Beam Cross-Sections

Products Abaqus/Standard

Type History data

LevelStep

There are no parameters associated with this option.

 

Data line to define the beam centerline precurvatures and pretorsion

First (and only) line

  1. Precurvature of the beam centerline in the plane perpendicular to the 1-axis of the cross-section (reciprocal of the osculating circle radius of the centerline projection onto that plane). (See Figure 1.) The default is 0.0.

  2. Precurvature of the beam centerline in the plane perpendicular to the 2-axis of the cross-section (reciprocal of the osculating circle radius of the centerline projection onto that plane). The default is 0.0.

  3. Pretorsion of the cross-section orientations along the beam centerline in radians per unit length. (See Figure 2.) The default is 0.0.
Figure 1. Precurvature.

Figure 2. Pretorsion.