JIG FOR ULTRASONIC FATIGUE TESTING MACHINE

摘要

A pair of jigs has the same mass and a weight is adjusted in consideration of a test piece shape so that stress of a center portion of a test piece becomes a desired value. That is, the jig serves as a weight adjustment tool for adjusting a resonance frequency and stress of the test piece. The upper and lower jigs are attached to both ends of the test piece S so that the center of gravity of the upper jig and the center of gravity of the lower jig are located on a perpendicular line passing through the center portion of the test piece.