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?