一、引言与基本关系式 1950年前后所建三个经典夹层板理论,自然均可被推广到面板为复合材料叠层板中,本文基于推广的Hoff理论,其基本假设为: (1)上、下面板为叠层板,且叠层板厚度很薄,但不同铺向角各铺层的偏轴刚度差别较大,所以考虑面板本身的抗弯刚度; I. INTRODUCTION AND PRELIMINARY RELATIONSHIPS Three classic sandwich panels built around 1950 can be generalized to composite panels. Based on the generalized Hoff theory, the basic assumptions of this paper are: (1) , The lower panel is a laminate, and the thickness of the laminate is very thin, but the deviations of the deviations of the deviations of the eccentricities of the plies in different lay angles are relatively large, so the flexural rigidity of the panel itself is taken into consideration;