Learning Forum

[Noureldeen Radi]

How Ansys calculates deformation in beams made out of isotropic materials 

I used transformation section rule for solving for deflection analytically but the value is different around 22mm for Ansys apdl result and 52mm for analytical results 

[mrife]

Hi Noureldeen

Before getting into materials, which beam theory did you assume in your hand calculations?  Mechanical APDL uses Timoshenko beam theory for Beam188/189.

Mike

[Noureldeen Radi]

Hello, my question was. Not clear 

I used she'll 181 fo so how ansys calculates the deflection and stresses on my beam.. I have a 4 point force and 3 isotropic materials in 1 composite lay-up... Finally all  modeling is made in areas..

How ansys calculates it analytically?

And should I do any boundary conditions or initializing any equations?