有限高さを持つ六角形八二カムコア材の面内等価弾性定数

抄録

In this paper, the effect of height of the hexagonal honeycomb core on the equivalent elastic moduli is studied by using numerical results of the finite element method. For honeycomb core subjected to in-plane loading, there exist deformations in the height direction for cell walls due to the effect of Poisson's ratio. Since these deformations are different for adjacent walls if they are not joined together along the common edge, the in-plane stiffnesses should be analyzed as a three-dimensional problem, in which the deformations in the height direction are considered. Based on this fact, an equation to calculate elastic moduli from their values under the plane strain condition is proposed. Then, the validity of the present formula for elastic moduli is verified comparing with the numerical results by the finite element method.