Dynamic Test method to Determine Modulus of Elasticity of Sound Insulating Coat

현장 타설용 고분자 감쇠재의 탄성 계수를 측정하기 위한 실험 기법

The main purpose of this paper is to present the dynamic test method developed for measuring the elastic modulus of sound insulating coat. The test setup was devised based on the theoretical natural frequency of a simply-supported beam subject to free transverse vibration. A stainless steel beam was tested and the result showed a good compliance with the standard value listed in literatures. The result indicates that the test set up can serve as a quick, economical and suitable scheme to test non self-supporting materials.