異方性積層く形断面ばりにおける調和波伝ぱの半厳密解法

概要

論文の詳細を見る
A semiexact method is presented for investigating harmonic wave propagation in arbitrary anisotropic laminated bars of rectangular cross section. In the thickness direction, the laminated bar is divided into N plate elements. The displacement field within each element is approximated by a linear expansion in the thick direction and exponential functions in the other two directions. The principle of virtual work is applied to determining the characteristic values in the width direction. Then the dispersion relations are obtained by using boundary conditions. As examples, the characteristic frequencies are calculated for an isotropic bar, an unidirectional carbon/epoxy laminated one and a hybrid composite laminated one which consists of carbon/epoxy and glass/epoxy layers. The results of the isotropic bar and unidirectional carbon/epoxy laminated one are compared with those obtained by other methods.
一般社団法人日本機械学会の論文
1989-07-25