STRESS GAUGE AND STEEL MATERIAL HAVING THE SAME

摘要

PROBLEM TO BE SOLVED: To simply perform installation and measurement to make it possible to reduce time and effort for the work and achieve cost reduction.SOLUTION: To provide a stress gauge 1 that is provided with a steel material 2 and measures the state of stress and strain of the steel material 2. The stress gauge includes a single or a plurality of detection members 3 in which notches 3a are formed. The detection member 3 is provided such that a crack generated from the tip of the notch can extend in response to a change in strain of the steel material 2. Each of the plurality of detection members 3 has a different notch length a and is arranged in order of length of the notch length a.SELECTED DRAWING: Figure 1