OS12W0069 Experimental study on fatigue life and effect of the excess cyclic pressures for the very thin bursting rupture discs

Abstract

Recently studies concerning strength evaluation of very thin plates of metallic materials have become more important for safety design.Thin plates of metallic materials are applied to safety bursting rupture discs. A test specimen was made from bursting rupture discs of copper plate. Experiments were conducted using three shapes(disc, dome or annealed dome). The fatigue life was examined by test specimens of six materials (copper, aluminum, nickel, monel, inconel and stainless steel) for flat bursting rupture disc. The effect when excess cyclic pressures were generated and repeated numerous times was examined in stainless steel, and a very interesting result was obtained.