Theoretical and experimental investigation of bending of sandwich beams

We present the results of theoretical and experimental investigation of problems on bending of composite inhomogeneous sandwich beams. The theoretical results obtained by using the basic equations of the stress-strain state deduced within the framework of classical and refined nonclassical theories of bending of composite beams were compared with the experimental data. The nonclassical theory is based on a hypothesis taking into account the effect of deplanation of cross sections of the beam caused by transversal shear deformations. As experimental data, we use the results of experimental investigation of the process of bending of sandwich beams. Material discussed: aluminum-magnesium alloy separated by a polystyrene foam filler.