| 摘要 |
PROBLEM TO BE SOLVED: To simplify measuring work, shorten its time, and simplify a measuring system by reducing the amount of measuring equipment to be brought to the field on stress measurement on an existing structure made of a magnetic material. SOLUTION: In this method for measuring stress of a member to be measured 1 made of a magnetic material, a measuring plate 2 made of a magnetic body is pasted to the member to be measured 1, and distortion of the measuring plate 2 is converted into stress by a magnetostrictive method to measure stress of the member to be measured 1. Stress immediately after the measuring plate 2 is pasted to the member to be measured 1 or before the pasting is measured by a magnetostrictive method and taken as initial stress. Stress of the measuring plate 2 after load of the member to be measured 1 is changed is measured by a magnetostrictive method, and the difference between the result of stress measurement after the load of the measuring plate 2 is changed and the initial stress is taken as stress of the member to be measured 1. COPYRIGHT: (C)2005,JPO&NCIPI
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