Hi Sean,

Oh man, I am so embrassed right now! Indeed I made a mistake with the units in the sphere's Elasticity Modulus: it was set as 186 Pa instead of 186 GPa. 😅 Now it works just fine for force, and the stress results are relativily close to the analytical solution! 

I am so sorry that you wasted your time thinking on a lot of possibilities when it was only this typo.

I would like to thank you for the help, all in all it was a nice discussion for me where I've learnt new features and got more knowledge about contacting and loading.

Have a nice week!