FIELD: physics.
SUBSTANCE: installation for testing samples of materials has a housing fitted with active and passive sample gripping devices; a lever hinged to the housing with possibility of interacting with the active gripping device; a mechanism for holding the lever in a given position, fitted on the housing with possibility of interacting with the passive gripping device; a load, a spring joined to the load by one of its ends; a first cantilever mounted on the housing in parallel to the lever; a second cantilever parallel to the first cantilever and lying on the other side of the lever; blocks fitted on the cantilevers and bent by a tension rod, and holders of the tension rod on the lever.
EFFECT: increased information content due to possibility of testing with change of ratio of loads of different sign during testing without unloading the sample.
1 dwg
