Fatigue test method, fatigue test piece and fatigue test apparatus

摘要

PROBLEM TO BE SOLVED: To provide a fatigue test method capable of evaluating fatigue strength on torsional deformation using a fatigue test piece held at one end only, and provide a fatigue test piece and a fatigue tester.SOLUTION: The fatigue test method includes the steps of: disposing at least one distortion sensor for measuring a distortion of a fatigue test piece; fixing one end of the fatigue test piece to a holding unit; and measuring a distortion of the fatigue test piece with the at least one distortion sensor while vibrating the holding unit with an actuator to vibrate to thereby vibrate the fatigue test piece.SELECTED DRAWING: Figure 5