Analiza porównawcza modeli sprężysto-plastycznego pręta pod działaniem zginania, siły podłużnej i temperatury

Relatively easy problem of an elastic-plastic bar under simultaneous bending moment, axial force and temperature involves some difficulties when the relations between generalized loads and displacements are to be determined. Several models of the bar based on deformable as well as rigid finite elements are proposed and analysed. As a result of the comparative analysis a suitable mathematical model may be chosen to describe elastic-plastic behaviour of tubes constituting the foundation of tube shees in heat exchangers and chemical reactors.