Tips and Tricks #1406: OptiStruct – New Beam Formulation
New Beam Formulation (Timoshenko)
• Timoshenko beam theory formulation is introduced with PARAM,BEAMALT,YES for CBAR/CBEAM.Default is NO.
• With this formulation turned on, the shear deformation of the beam will be more accurate and rotary inertia will alsobe added. For the maximum accuracy, it is recommended to use PARAM,COUPMASS,YES.