| 摘要 |
PROBLEM TO BE SOLVED: To provide a gauge mark jig for a material testing machine and a material testing machine that enable a position of a gauge mark to be accurately measured even if a gauge mark member is rotated with a test specimen as a center and the gauge mark member to be fixed to the test specimen even if test force is imparted to the test specimen to make the test specimen thin.SOLUTION: A gauge mark jig 3 is constituted of a gauge mark member 41 that itself functions as a gauge mark and a stopper 61 for fixing the gauge mark member 41 to a test specimen 18. The gauge mark member 41 has an abacus bead shape in which a first hole part 53 and a second hole part 52 are formed at a center thereof, while the stopper 61 is made up of an elastic member such as rubber and has a through hole for the test specimen 18 formed therein. |
