3D beam element can not do torsion

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jiangjian0131
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Joined: Mon Sep 21, 2009 1:54 am
Location: EDINBURGH, UK

3D beam element can not do torsion

Post by jiangjian0131 » Wed Sep 05, 2012 9:27 am

The 3D beam element DispBeamColumn3d has problems for torsion analysis. For example, creat a cantilever 3D beam and apply a torsion at the free end. The analysis failed due to unknown reasion. Is there problems in considering torsional stiffness (GJ/L) when forming the stiffness matrix.

Jian Jiang
JIAN JIANG

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