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2019-02-21
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Warping Torsion

Warping torsion is drilling with restrained axial displacement or forced torsion.

Warping torsion occurs in the cross-sections that are not free to warp, if the warping of the end cross-sections is restrained. The non-free-to-warp cross-sections include, in particular, open thin-walled steel cross-sections. On the other hand, a circle, a circular ring, and a square hollow cross-section with constant wall thickness, are free-to-warp cross-sections.

Usage in Program

You can perform the warping analysis, taking into account the cross-section warping, using the Warping Torsion (7 DOF) add-on. It allows you to perform lateral‑torsional (flexural-torsional) buckling analyses of members according to the second‑order theory with 7 degrees of freedom and the application of imperfections with regard to mode shapes.


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