Load fixture for unidirectional composite material tensile testing

Abstract

The utility model discloses a load clamp suitable for one -way composite material tensile test, including clamp main part, clamping block and press block, be equipped with clamping block cavity and press block cavity on the clamp main part, and the one end of clamping block cavity is open export away from press block cavity, and the both sides of clamping block cavity are about vertical symmetry and the inclined guide surface, and one pair of clamping block symmetry is established in the clamping block cavity and the one side of mutually close is vertical clamping surface, and the one side of mutually far away is the inclined surface of can with the guide surface adhesion, and the press block vertical sliding fit is in the press block cavity and one end is the stress end of protruding clamp main part, and the other end is the force end of protruding clamping block cavity, and the stress end is by hydraulic cylinder drive, and the force end can be driven to push two clamping blocks to move to export direction simultaneously, and when two clamping blocks move to export direction, can mutually close under the action of inclined surface and guide surface, the one end of the inclined surface of clamping block is equipped with arc chamfer close to export. The clamp can convert the force of ordinary oil cylinder into higher clamping force, and can relieve stress concentration of clamping block end.

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