 My third concern is about parameters. In particular the soft tissue thickness, the nodule Young modulus, and its depth. Since nodule diameter is 00mm, I would expect to have at least 00mm of soft tissue between the nodule and the supporting rigid plane. Even if the applied forces are small, it is a bit surprising that the nodule, especially at 0mm depth, does not influence the stress tensor of the surrounding soft tissue. For what regarding the depth, why the maximum selected depth is 0mm?  