ABSTRACT
Beam models are not demanding in terms of calculation because the elastic bearing capacity of a steel rod which is loaded with a bending moment only can be calculated analytically. The limit force for the beam is big: Fmax = 123.29 kN. Because this is a rod model, the elastic limit bearing capacity is given by the normal stress σx in outermost fibres in the cross-section. If the normal stress exceeds the yield stress, the outermost fibres will become plastified. The maximum moment in the middle of a beam calculated using a rod model in MATLAB is M = 27.74 kNm.
