I am modeling a reinforced concrete beam for pure torsion test. however the solid continuum element(C3D8 or C3D8R) of the the beam doesn't display me the ratational forces and displacements at the section of my interest (mid of the beam) that i request in the field out put.
You can create the displacement using the following:
1) Create a cylindrical coordinate system along the axis
2) Request U2 and COORD1. (you can request more)
3) Twist is simply ATAN(U2/COORD1) in the cylindrical system.
4) You can use integrated section output or the free body feature in CAE to calculate torsion at various sections. Alternatively you can manually sum/script the nodal internal forces in the sections in your cylindrical system.
Hope this helps,
Best regards,
David
David Sziroczak
sir may I ask you what do you mean in COORD1? and is there any way without transfer it to cylindrical coordinate.
thanks alot
SABA
COORD1 is the 1 component of the COORD ouput. In a cylindrical system it's R, in rectangular it's X. If you haven't requested that output, you can still get the coordinates if you use the "probe" and select the nodes you want.
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