The strength of the conventional composite plates can be enhanced by the use of additional fillers. These composite plates are often subjected to dynamic loading conditions which necessitate the study of their static and dynamic behavior. In this study, laminated composite plates (LCP) are fabricated by open layup process with epoxy as a base resin, E-glass fiber as reinforcement, and fillers: flyash and graphene. The fillers are included in order to improve the mechanical properties of the composite. The filler content in the composite is limited to 5% of the total volume. The weight percentage of fiber combined with fillers, treated as reinforcing constituents is limited to 60%. Graphene and flyash are added in different proportions to develop different kinds of LCPs. The free and forced vibrations of LCPs (using simple support end conditions) are measured by an indigenously developed low-cost vibration testing module. The experimental results have been used to validate the results obtained from the mathematical modeling by using fifth-order shear deformation theory and finite element approaches. Additionally, the effect of existing discontinuity in the LCP is studied. Circular holes of different dimensions at different locations are simulated in the numerical model and the consequences on modal frequencies are analyzed.

传统复合板的强度可以通过使用额外的填料来提高。这些复合板经常受到动态载荷条件的影响，因此需要研究它们的静态和动态行为。在这项研究中，层压复合板 (LCP) 是通过开放式铺层工艺制造的，环氧树脂为基础树脂，无碱玻璃纤维为增强材料，填料：粉煤灰和石墨烯。包含填料是为了改善复合材料的机械性能。复合材料中的填料含量限制为总体积的 5%。作为增强成分处理的纤维与填料的重量百分比限制为 60%。石墨烯和粉煤灰以不同的比例添加以开发不同种类的LCP。LCP 的自由振动和受迫振动（使用简单的支撑端条件）由本地开发的低成本振动测试模块测量。实验结果已用于验证通过使用五阶剪切变形理论和有限元方法从数学建模中获得的结果。此外，还研究了 LCP 中现有不连续性的影响。在数值模型中模拟了不同位置不同尺寸的圆孔，并分析了对模态频率的影响。研究了 LCP 中现有不连续性的影响。在数值模型中模拟了不同位置不同尺寸的圆孔，并分析了对模态频率的影响。研究了 LCP 中现有不连续性的影响。在数值模型中模拟了不同位置不同尺寸的圆孔，并分析了对模态频率的影响。