  The p-norm often used in stress constrained topology optimisation supposedly
mimics a delta function and it is thus characterised by a small length scale
and ideally one would also prefer to have the solid-void transition occur over
a small length scale, since the material in this transition does not have a
clear physical interpretation. We propose to resolve these small length scales
using anisotropic mesh adaptation. We use the method of moving asymptotes with
interpolation of sensitivities, asymptotes and design variables between
iterations. We demonstrate this combination for the portal and L-bracket
problems with p=10, and we are able to investigate mesh dependence. Finally, we
suggest relaxing the L-bracket problem statement by introducing a rounded
corner.
