BENCH FOR STRENGTH TESTING OF MATERIALS Russian patent published in 1995 - IPC

FIELD: mechanical testing. SUBSTANCE: bench has base 1, columns 2 mounted on the base, cross-piece 3 moving along them and device 4 for fixing it, cups 5 with two fluid-tight cavities communicating with a medium source via channels 8 and 9 and mounted on the columns; dynamic loading device 11. At static loading for stretching a working liquid is applied to channel 8 of cup 5. The working liquid moves cup 5 with cross-piece 3 upwardly. Cross-piece 3 through grip 6 stretches specimen 7. Upon simultaneous static and dynamic loading dynamic loading is carried out separately by short-stroke loader 11 which length is equal to a length of a cylinder and rod corresponding to a short stroke of piston thus allowing to fabricate the loading device with minimum weight, to reduce its inertia and thus increase a loading frequency. EFFECT: enhanced reliability. 1 dwg