STABILITY OF THE VON MISES TRUSS UNDER THE CONDITION OF MATERIAL NON-ELLIPTICITY

The process of buckling of the von Mises truss in the case of material instability, i.e., with allowance for material non-ellipticity, is considered. Force-displacement diagrams are constructed. Results that allow one to study buckling of thin-walled structures (arches or shells) made of materials for which the loss of ellipticity of equilibrium equations is possible are obtained.