| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fatigue degree detection strain gauge that enables measurement of strains in structural materials and also enables exact prediction in advance of a sign of fatigue fracture locally generated in the structural materials. <P>SOLUTION: In a fatigue degree detection strain gauge 100, measurement of strains and detection of fatigue degree can be conducted by detecting electrical variations of resistance in a resistor constituted such that there are connected a strain detection part 130, a fatigue degree detection part 150 connected in series to the strain detection part, and a conduction part connected in parallel to the fatigue degree detection part. The detection of fatigue degree in the vicinity of a stress concentration portion in a structure is properly conducted in such a constitution that there are included terminal parts 120 connected to one end of the strain detection part and one end of the conduction part respectively in order to detect the electrical variations of resistance in a resistor and the fatigue degree detection part is disposed at an end on the opposite side to a position at which the terminal parts are disposed. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
