FATIGUE TESTING MACHINE FOR MICRO/NANO MATERIAL

PROBLEM TO BE SOLVED: To provide a fatigue testing machine, capable of highly accurately measuring and evaluating the fatigue life of a microtest piece and the relation between stress and the number of fracture repetitions. SOLUTION: The fatigue testing apparatus for micro/nanomaterials is provided with both a sample holder 10 for supporting a microtest piece 1 by a cantilever system and flexible cantilevers 2 and 2', arranged in contact with a free end of the test piece 1. The sample holder 10 or the cantilevers 2 and 2' are provided with a means for providing micro reciprocating oscillations in the directions in which one of the sample holder 10 and the cantilevers 2 and 2' abuts against and separates from the other. The microtest piece 1 is provided with the load of repetitive microload, corresponding to the bending elasticity of the cantilevers 2 and 2'. On the basis of the amount of bending of the test piece 1 or the cantilevers 2 and 2', the load acting on the test piece 1 is measured, to evaluate the fatigue life of the micro/nanomaterials. COPYRIGHT: (C)2005,JPO&NCIPI