What you both are saying is right. But the problem I have is not to get the exact stress values but to get the value of the stress gradient as good as possible. And here when the mesh is too fine it does not allow to have a good precision (probably due to numerical problems). So I was asking if...
Hello,
I am trying to calculate a stress gradient within a 2-D structure as accurately as possible. I have compared results in a simple example where the analytical solution is known (infinite plate with a hole).
I thought that the finer the mesh, the more accurate the result. But in fact I...
