Ansys Learning Forum Forums Discuss Simulation General Mechanical changing timoshenko beam theory into euler theory Reply To: changing timoshenko beam theory into euler theory

peteroznewman
Subscriber

Okay, 1000/12 = 83 so accuracy would start to degrade for modes with more than 83 sinusoids along the length.  Mode 24 had 12 sinusoids.

Another source of error is whether the beam element is using a consistent mass matrix or a lumped mass matrix.  Here is a YouTube video on that topic.

I know about this for the Nastran solver.  I haven't looked up how the Ansys solver treats the mass in the BEAM4 element.