| 摘要 |
PROBLEM TO BE SOLVED: To enable longitudinal oscillation amplified by a horn and a test piece to be integrally made resonance in a state where a test piece of a material where screw processing cannot be performed or a thin shaped tabular test piece where the screw processing cannot be performed at a thick plate part is attached to a test piece gripping tool in an ultrasonic fatigue test.SOLUTION: In an ultrasonic fatigue test, a tabular test piece is attached to a horn by fastening the test piece with a test piece gripping tool having a pair of wedges inserted into a wedge holder. Since the tabular test piece is mechanically attached to the horn tightly, longitudinal oscillation amplified by the horn is reliably transmitted to the test piece. |
