• Title/Summary/Keyword: 준종파 속도

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Measurement of Mechanical Properties of Pyeongyeong Chime Stone (편경 제작용 경석 표본의 역학적 물성 측정)

  • Park, Sang-Ha;Noh, Jung-Uk;Sung, Koeng-Mo
    • The Journal of the Acoustical Society of Korea
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    • v.27 no.4
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    • pp.171-177
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    • 2008
  • In this paper, we have measured the fundamental properties of chime stone for Pyeongyeong. The properties are measured by wave propagation in the stone without destroying the stones, the measured properties are the chime stone density, natural frequencies of extensional wave and bending wave, and Young's modulus which is calculated by the measured properties. To find a value for Young's modulus, the fundamental frequencies which are obtained through spectrum analysis of extensional wave and bending wave are used. We calculated Young's modulus of chime stone by theoretical study and measurement on extensional wave and bending wave of the beam. As a result, we obtained Young's modulus by the fundamental frequencies of extensional wave and bending wave which deviation is within 2%.