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
3D beam element can not do torsion
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jiangjian0131
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3D beam element can not do torsion
JIAN JIANG