Nonlinear free/forced vibrational behavior of a sandwich plate with graphene platelet (GPL) reinforced face sheets has been examined in the present research based on classic plate theory and von-Karman’s nonlinear strains. Honeycomb sandwich panels are often made of aluminum material having low weight but also low stiffness. Here, the application of GPL-reinforced nanocomposites as face sheets of sandwich panels has been proposed to enhance their mechanical performance. Uniform and linear distributions of GPLs in the face sheets have been considered. Based on Gibson technique, the hexagonal honeycomb core is equalized with a solid core. Harmonic balance method has been implemented to solve the nonlinear governing equations of sandwich panel having cubic nonlinearities. It is found that free and forced vibrations of honeycomb sandwich panel are affected by GPL dispersion type, GPL amount in the face sheets, face sheet thickness and cell wall thickness of the core.

在本研究中，基于经典板理论和冯卡曼非线性应变，研究了具有石墨烯薄片 (GPL) 增强面板的夹层板的非线性自由/受迫振动行为。蜂窝夹芯板通常由重量轻但刚度低的铝材料制成。在这里，已提出将 GPL 增强纳米复合材料用作夹层板的面板以提高其机械性能。已经考虑了面板中 GPL 的均匀和线性分布。基于吉布森技术，六角形蜂窝芯与实心芯平衡。已经实现了谐波平衡方法来求解具有三次非线性的夹芯板的非线性控制方程。