RIGIDITY AND STRENGTH ON THE WALLS OF ALUMINUM-ALLOY HONEYCOMB SANDWICH PANELS

Structural rigidity and strength on the walls of aluminum honeycomb sandwich panels were investigated experimentally. Especially, the following factors which influenced on efficiency of the walls were investigated, i.e., method of fixation in top and bottom of the panels, the frame material that fixes surrounding of the panel material, method of connection unit panels that connected each other in direction of width. As a result of investigations, the following conclusions were obtained. It is enough to evaluate the rigidity and strength on safety side, if only the effect of surface plate of honeycomb panels is considered, under assumption that joint strength of top and bottom edge is enough. Framed honeycomb panels have twice stiffness to non-framed panels, but it is not appropriate to expect the effect of the strength improvement with the framed panels. Rigidity and strength of the panels can be evaluated on safety side, if the number of panels is multiplied by the performance of basic unit panel, and effect of connection unit panels in direction of width was observed.