Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study on the Longitudinal Vibration of Finite Elastic Medium using Laboratory Test

실내실험을 통한 유한탄성 매질의 종방향 진동에 대한 연구

  • Park, Ki-Shik (Department of Civil Engineering, Yeojoo Institute of Technology)
  • Published : 2002.06.30
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Abstract

Longitudinal wave tests with finite elastic medium were performed to investigate the difference between measured values and theoretical values of propagation velocity and elasticity modulus. Each accelerometer was attached on finite elastic medium with same phase and different positions to check the particle motion. The results show that measured values of elasticity moduli from both time domain and frequency domain were similiar to theoretical value. Polarity of signal depends entirely on the phase of accelerometer. It proved that the propagation velocity and the particle motion are in the same direction when a compressive stress is applied. And also the propagation velocity and the particle motion depend on the intensity of the stress and material properties respectively.

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References

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