Erik Kostson
Ansys Employee

You said "So according to your formula adding two nodes and then subtract from the initial width is 0.95433+0.95433=1.908 , 40-1.908=38.092, which means the width is reducing in the inner layer as it is total contradiction against the bending nature. Please sir any suggestion to solve this confusing problem?"
have in mind that I just commented on the image you showed initially and just made a simple illustrative example so it is not an universal way for finding this, it is just a potential way, but needs thinking from the user - I hope you understand that.
In the image you showed now, you see that the distance is getting larger than the original width or height (I do not know what you look at but it does not matter if it is width or height) since they go up and down on respective side. So in this case, the distance is increasing than the actual original width/height so it is more like:

40mm + 2*0.95433mm ~ 41.9 mm.

So when one does this one must think how these points move relative the original width and subtract or add accordingly.
As for the other post I can not comment .

All the best