Thanks Ashish, 

According to this manual i have tried to model but i am also interested in contact pressure and shear stress results. i have done very refined mesh in contact areas to capture this but still i am getting huge amount of error and also the stress at front and back surface is not equal in 3D model.

According to research paper mentioned in this link analytical solution for deformation result (d values in link) is also half compares to my calculation.

If you can through more lights in it.