완충재의 동탄성 및 손실계수 측정 시 영향인자에 관한 연구

A Study on the Influence Factor in Measuring the Dynamic Stiffness and Loss Factor of Damping Materials

The aim of this study is to suggest the method of measuring the dynamic stiffness and loss factor of materials used under floating floors in the dwelling by korea standard (KS F 2868). According to the results, the amplitude change of an impact source have no effect on the variation of the dynamic stiffness and loss factor. Comparing with the heating before, heating makes lower the dynamic stiffness except the EPS. In EVA material, the loss factor is increased by heating.