Figure 3

Shell structure: the case of no restriction on the sign definiteness and graphical representation of the solution σ. (Top-Left) Graph of the function z in Ω. (Top-Right) Above: distribution of the component \(\sigma_{xx}\) on the surface z. Below: representation of the component \(\sigma_{xx}\) in the rectangle Ω. (Lower-Left) Above: distribution of the component \(\sigma_{yy}\) on the surface z. Below: representation of the component \(\sigma _{yy}\) in the rectangle Ω. (Lower-Right) Above: distribution of the component \(\sigma_{xy}\) on the surface z. Below: representation of the component \(\sigma_{xy}\) in the rectangle Ω.