ULTRA-HIGH CYCLE FATIGUE TESTING DEVICE, CAPABLE OF IMPROVING THE ACCURACY AND RELIABILITY OF A FATIGUE TEST

摘要

PURPOSE: An ultra-high cycle fatigue testing device is provided to reflect changes in the size of a specimen generated in a fatigue test on a real time basis, thereby calculating a dynamic elastic coefficient of the specimen and obtaining a fatigue test result based on the same.;CONSTITUTION: An ultra-high cycle fatigue testing device comprises a vibration generator(110), a power generator(120), a dynamic elastic coefficient calculation module(140), a control module(150), and a displacement measuring sensor(130). The vibration generator applies vibration having preset frequencies to a specimen(S). The power generator supplies power for driving the vibration generator. The dynamic elastic coefficient calculation module calculates a dynamic elastic coefficient of the specimen by reflecting changes in the size of the specimen. The control module calculates a fatigue test result based on the dynamic elastic coefficient calculated by the dynamic elastic coefficient calculation module. The displacement measuring sensor measures the displacement of the specimen in one or more directions.;COPYRIGHT KIPO 2013;[Reference numerals] (120) Power generator; (130) Displacement measuring sensor; (140) Dynamic elastic coefficient calculation module; (150) Control module; (160) Sensor transfer unit; (170) Temperature measuring sensor