A stress-based approach to the solution of Saint Venant problem

The proposed formulation is based on the solution of the Neumann problem associated with the shear stress field by exploiting an intrinsic particular integral of the differential problem emerging from Baldacci's approach to Saint-Venant problem. In this way the representation obtained for the shear stress field, for the shear center and for the shear flexibility tensor presents the advantage of being independent from the particular reference frame and of being written in intrinsic, and hence more synthetic, form.