PNEUMATIC APPARATUS FOR IMPACT TESTS Russian patent published in 1994 - IPC

FIELD: investigating strength properties of materials at impact loading. SUBSTANCE: apparatus has a shaft, striker located within the shaft, receiver with compressed gas separated from the shaft with the aid of diaphragm, members for initiating the opening disposed along radii on the diaphragm, explosive charge made in the form of strips of film-type explosive material and fixed to the diaphragm. The charge furthermore is provided with electric detonator secured to a holder in the center of diaphragm. EFFECT: enhanced accuracy. 3 dwg