摘 要：应用有限元软件ANSYS，分析树脂柱对点阵增强型复合材料夹层板力学性能的影响。对夹层板建立物理模型，采用8节点SOLID45实体单元，计算夹层板的屈曲、自由振动以及受冲击荷载时的瞬态动力响应。研究了树脂柱的材性及分布对夹层板屈曲载荷及自振频率的影响，讨论了瞬态冲击荷载作用下树脂柱对降低竖向动力位移的正面作用。结果显示，树脂柱的存在对夹层板的力学性能有一定影响，其中树脂柱的材性对夹层板屈曲及动力学特性的影响有限，而树脂柱的疏密程度对点阵增强型复合材料夹层板的力学性能有着明显的改进作用。

Abstract: Using the finite element software ANSYS, a physical model is developed for the elasticity analysis of the sandwich plates reinforced by resinic columns. The SOLID82 elements are used to calculate buckling, free vibration and transient response. The effects of the material properties and the distributions of the resinic columns on the buckling loads and natural frequencies are studied. The displacement response of the plates under the transient shock is also discussed. The results show that the resinic columns have some contributions to the mechanical properties of the sandwich plates. The modulus influence of resinic columns on buckling and vibration of the composite plates is small. However, the distribution effect of the resinic columns on the mechanical properties of the composite plates is considerable.