Identification of elasticity modulus by vibratory analysis (Application to a natural composite : aleppo pine wood) = Identification des modules d’élasticité par analyse vibratoire (Application à un composite naturel : bois de Pin d’Alep)

Abstract

In this paper, we present a method for the determination of the elasticity modulus in the vibratory domain of materials. This approach is based on research and interpretation of the spectrum of natural frequencies resulting from natural vibrations based on the theory of elastic beams. The tests consist of classical tests of longitudinal vibrations of natural composite beams (Aleppo pine wood), long enough to observe some natural frequencies. This identification method showed a good correlation between the theoretical and experimental values, notably the evaluation of the modal parameter for the case of the resonant frequencies and the identification of the modulus of elasticity of the materials used