Abstract
The paper presents an experimental study on the influence of the polyurea layer on the behaviour of metal plates loaded through air blast while the polyurea coat is placed on the loading face of the plate. To assess the influence of polyurea layer, the permanent maximal deflections of tested plates were used. A strong dependence between the effect of polyurea coating on the permanent deflection and stand-off was found. The analysis based on comparison between theoretical predictive functions and test result have shown that in almost all tested scenarios the bilayered plates results are less promising than the predicted results of monolithic steel plates of equal areal density.
Keywords: polyurea layer; blast load; plane plate; range test; overpressure