한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

한국정밀공학회 (Korean Society for Precision Engineering)
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초음파에 의한 SM45C/STS410재의 접촉압력측정에 관한 연구

A study on Contact Pressure Measurement of SM45C/STS410 Materials by Means of Ultrasonic Waves

  • Yi, W. (Dept.of Mechanical Engineering, Soongsil University) ;
  • Yun, I.S. (Dept.of Mechanical Engineering, Soongsil University) ;
  • Jeong, E.S. (Dept.of Mechanical Engineering, Soongsil University)
  • 발행 : 1996.11.01
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초록

The contact pressure in jointed plates was measured by means of an improved ultrasonic technique. In order to get calibration curve, the relationship between contact pressure and ratio of boundary and bottom echo of normal beam probes were obtained for the calibration blocks with various surface roughness. The ratio of boundary and bottom echoes were measured for the upper/under plates locally compressed with uniform pressure, and the distribution of contact pressure was obtaines. The measured pressure has a good agreement with results of FEM analysis. Thus the proposed ultrasonic method in this work is very useful to measure the contact pressure.

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