Specimen clamping jig for high cycle fatigue tester

摘要

PURPOSE: A high-cycle fatigue testing apparatus is provided improve reliability of a testing result of a high-cycle fatigue test and to linearly align a central axis of load in an easy manner by using two jig devices. CONSTITUTION: A sample jig(20) is divided into two semi-cylindrical jig sections, which are formed at outer portions thereof with male screws in such a manner that the sample jig(20) is screw-coupled into a female screw of a connection jig(10). The sample jig(20) is formed at a center thereof with a hollow section(21) in order to receive a test sample(30) therein. The hollow section(21) has a shape identical to a shape of a grip section(31) of the test sample(30). The hollow section(21) includes a first space section(21a) formed at an upper end thereof and a second space section(21b) having a funnel shape. The test sample(30) is movable between the first and second space sections(21a,21b). A diameter of the first space section(21a) is larger than a diameter of the grip section(31) of the test sample(30) in such a manner that a central axis of load automatically matches with an axis of the test sample(30) when load is applied thereto.