초음파 감쇠계수에 의한 균열길이의 측정

Measurement of Crack Length by Ultrasonic Attenuation Coefficient

  • 정남용 (숭실대학교 기계공학과) ;
  • 박성일 (숭실대학교 대학원 기계공학과)
  • 발행 : 2003.04.23

초록

In this paper, the ultrasonic attenuation coefficient was measured by variation of crack length for double-cantilever beam(DCB) specimen. The energy release rate, G, was obtained by the experimental measurement of compliance. The experimental results represents that the relation between crack length for the ultrasonic attenuation coefficient and energy release rate is increased proportionally. From the results of experiments, the measurement method of crack length by the ultrasonic attenuation coefficient was proposed and discussed.

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