Journal of the korean Society of Automotive Engineers (오토저널)
- Volume 10 Issue 3
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- Pages.38-44
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- 1988
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- 1739-4791(pISSN)
Study on the measurement of bolt axial force by ultrasonic wave
초음파에 의한 볼트의 축력측정
Abstract
It is important to control the axial forces of high tension bolts such as the automobile, construction machine, aircraft, marine engine bolts. However, the direct method to measure the axial forces of bolts practically have not been found out. The ultrasonic techniques is based on the principles that the bolt tensile elongation and ultrasonic velocity changes are proportional to the axial force below the yield point of the materials. From the result of the experiment, the coefficient of acoustoelasticity k could be measured as - 11.18*10
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