STRESS STRAIN CHARACTERISTIC MEASUREMENT DEVICE UNDER LARGE DEFORMATION REGION OR MULTI-AXIAL STRESS, AND STRESS STRAIN CHARACTERISTIC ANALYSIS DEVICE UNDER LARGE DEFORMATION REGION OR MULTI-AXIAL STRESS

摘要

To provide a stress strain characteristic measurement device under a large deformation or multi-axial stress and a stress strain characteristic analysis device under a large deformation region or a multi-axial stress capable of measuring and analyzing the stress strain characteristics under multi-axial stress to easily measure and interpret the obtained data by making them easy to understand without using a complex mechanism under the multi-axial stress, such as the local deformation of the material.SOLUTION: A method includes a restraint pipe 14 in which a stress strain characteristic measuring device 10 is formed into a tubular shape with an insertion hole 18 that is made more rigid than a test material 12 and penetrates along the axial direction, and the test material 12 is fitted into the insertion hole 18: a pressing member 16 made more rigid than the test material 12 and fitted into the insertion hole 18 from the upper side of the restraint pipe 14, and that abuts against the test material 12; and axial position adjusting mechanism 20 and shaft center tilt adjusting mechanisms 22, 24, 26, 28 which adjust the eccentricity of the test material 12.SELECTED DRAWING: Figure 1B