DYNAMIC STRENGHT TESTS OF MATERIALS FROM TUNGSTEN HEAVY ALLOYS DESIGED FOR PENETRATORS OF APFSDS-T PROJECTILES

Abstract

The paper presents results of strength tests for tungsten heavy alloys (WHA) designated for the rods of APFSDS–T kinetic projectiles. The strength tests of WHA materials were carried out in conditions of heavy dynamical loads i.e. by the firing. The paper gives a theoretical concept for the identification of stresses within the critical cross-sections of the investigated projectile, and a description of a testing stand which was specially prepared and equipped with 30 mm smooth bore ballistic barrel, and description of methodology and test results. It was especially interesting to test the material against various dynamical loads originating both from the forces of gas pressure and the crosswise forces occurring at the projectile’s move in the barrel.