抄録
An inverse analysis method has already been proposed by one of the authors to identify elastic parameters of laminated composite materials using the FEM eigenvalue analysis. The purpose of this study is to apply the proposed method to a laminated circular cylindrical shell and to compare the estimated elastic parameters of the lamina with the obtained experimental ones. First, by applying the experimental modal analysis technique to a laminated circular cylindrical shell with free boundary conditions, natural frequencies and mode shapes are obtained. Next, by considering the obtained natural frequencies and mode shapes, the elastic parameters for the lamina of the shell are identified. On the other hand, the elastic parameters of the lamina are obtained experimentally. These experimental elastic parameters were compared, and found to agree well, with the elastic parameters identified using the proposed method.
