[CS2-21] Effect of Void Ratio of Horizontal Crack Layer on Multiple Reflection Behavior of Elastic-Wave
Keywords:RC Slab, Impact Elastic Wave Method, Horizontal Cracks, Void Ratio, Frequency Analysis
Effect of Void Ratio of Horizontal Crack Layer on Multiple Reflection Behavior of Elastic-Wave
In this study, the effect of void ratio of horizontal crack layer on multiple reflection behavior of elastic wave was analytically investigated. As the result, the peak was found at the longitudinal wave resonance frequency corresponding to the depth to the horizontal crack layer, when the void ratio increased. However, as the void ratio increased, the longitudinal wave resonance frequency corresponding to the slab thickness tended to decrease. It was also found that the arrangement of the voids slightly affected the frequency spectrum.
In this study, the effect of void ratio of horizontal crack layer on multiple reflection behavior of elastic wave was analytically investigated. As the result, the peak was found at the longitudinal wave resonance frequency corresponding to the depth to the horizontal crack layer, when the void ratio increased. However, as the void ratio increased, the longitudinal wave resonance frequency corresponding to the slab thickness tended to decrease. It was also found that the arrangement of the voids slightly affected the frequency spectrum.
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