The invention discloses a clamp for a high-temperature high-cycle fatigue test of a
metal plate-shaped sample. The clamp is composed of a clamping head, a clamping head supporting rod, a fastening ring, a standby fastening ring and a base. The clamping head is provided with a clamping head clamping groove to be matched and clamped with a clamping tenon on the inner concave cambered surface of the clamping head supporting rod, the fastening ring is installed at the upper end of the clamping head supporting rod, and the clamping head supporting rod is connected with the base and locked through the standby fastening ring. The clamping head supporting rod is provided with an expanding
wrench, a sample is placed at the central position of the clamping head through the expanding
wrench, threads of both a threaded hole of the fastening ring and a bolt are coated with high temperature
grease, and the sample is fastened through a
wrench. The base is provided with a through water outlet to be connected with a
water circulation cooling
system, so that a good
cooling effect can be guaranteed, and the cost of manufacturing a
water cooled jacket can be reduced. The clamp is simple in structure, a clamping method is convenient to operate, an axial fatigue test of the plate-shaped sample under the test conditions of a maximum high temperature environment of 1100 DEG C, a maximum
axial load of 600 MPa and a frequency range of 90-110 Hz can be guaranteed, and the clamp has good reliability and clamping performance.