Abstract
The engineering performance of sandwich panels with expanded polystyrene foam core and steel or aluminium faces is evaluated in this paper. Such panels are usually used in semi-structural building applications with an insulating function. Bending, compression and thermal bowing experiments are conducted on these panels in the laboratory and their results are shown to conform in general to design values determined by current building codes and commercial practices. In edge-wise compression tests failure by column buckling has never occurred and localised face wrinkling is the usual failure mode. The adhesion between the polystyrene core and the metal skin as well as the location of the polystyrene joint in the panel are shown to have significant effects on the integral performance of the sandwich panels.
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