STRESS MEASUREMENT METHOD

• Main Authors: KABUTOMORI TATSUHIKO, TAKAMATSU HIROYUKI, FUKUI TOSHIHIDE, MATSUDA MARIKO
• Format: Patent
• Language: Chinese; English
• Published: 10.01.2020
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

A method for measuring the stress of a concave section of a test subject which comprises a metal and has a surface and a concave section, the method including: a detection step for detecting, using atwo-dimensional detector, a diffraction ring of diffracted X-rays which is formed by causing X-rays to be incident on the concave section and to be diffracted by the concave section; and a calculationstep for calculating the stress of the concave section on the basis of the detection results during the detection step. Therein, the detection step involves causing X-rays to be incident on each of aplurality of sites inside the concave section of the test subject, and detecting, using a two-dimensional detector, the diffraction ring formed by the diffraction of the X-rays by the concave section. 本发明的应力测定方法是对由金属构成的、包括表面以及凹部的被检查体的凹部的应力进行测定的方法，所述应力测定方法包括：检测工序，使X射线向凹部入射，并且利用二维检测器对通过所述X射线在凹部衍射而形成的衍射X射线的衍射环进行检测；以及计算工序，基于检测工序的检测结果来计算凹部的应力，在检测工序中，对被检查体的凹部内的多个部位分别入射X射线，并且利用二维检测器对通过各X射线在凹部衍射而形成的衍射环进行检测。