复合材料斜交板弯曲解析

Analysis on the Bending of Composite Skew Plate

对承受均布载荷的玻璃钢对称角铺设斜形板进行了弯曲分析。针对一对边简支、一对边自由边界进行计算，讨论了斜角β、铺设角θ、铺设层数Ｎ和跨宽比α对板挠度的影响。计算表明在均布载荷作用下，对于小斜角（β≤４５°）的层合斜板的铺设角为４５°时挠度较小；而大斜角（β＞４５°）的层合斜板的铺设角为０°时刚性较大。在厚度一定的情况下，铺设层数Ｎ增大，斜板挠度一般也增大。

The general analytic solutions for the transerve bending of the anistropic skew plate structure is applied to study the bending of fiberreinforced symmetrically angleply laminated composite skew plate under uniformed load.Analytical computation is carried out under two opposite simply supported edges and two free edge′s boundary condition.The effects of skew angle β、plyangle θ、number of plylayer N and aspect ratio α on the deflections of the plate are discussed.The skew plates with small skew angle (β≤45°),which lamination angles are 45° have smaller deflections.For the skew plate with large skew angle(β >45°),the skew plate with 0°plyangle has larger deflection.For the skew plate,the deflection increases with the increasement of the number of plylayer on the condition of the same thickness.