The finite-element time-dependent deflection and stress responses of the shallow composite panels subjected to variable mechanical loadings (uniformly distributed load and sinusoidally distributed load) are reported in this article. The study reveals the influence of the advanced fibre hybridization (glass–carbon–kevlar) on the dynamic responses and establishes the accuracy of the numerical responses by comparing them with the experimental values. The numerical steady-state deflections of the hybrid composite structure are evaluated using a generic mathematical model derived through Reddy's third-order shear deformation in conjunction with the finite-element technique and Newmark's time integration scheme. The experimentally evaluated mechanical properties of the fabricated composites are utilized in the computations. The validity of the computed solutions is ascertained with in-house experimental (transient deflection) results. Besides, the numerical model is extended to assess the parametric dependence (aspect ratio, thickness ratio, curvature ratio, geometry, hybrid schemes and support conditions) of the dynamic deflection/stress responses of hybrid composite shallow shell panels subjected to variable mechanical loading types.

本文报道了受可变机械载荷（均匀分布载荷和正弦分布载荷）的浅复合板的有限元随时间变化的挠度和应力响应。该研究揭示了高级纤维杂化（玻璃-碳-凯夫拉）对动态响应的影响，并通过将它们与实验值进行比较来确定数值响应的准确性。混合复合结构的数值稳态挠度使用通过 Reddy 三阶剪切变形推导出的通用数学模型结合有限元技术和 Newmark 的时间积分方案进行评估。在计算中利用了所制造复合材料的实验评估的机械性能。计算解决方案的有效性由内部实验（瞬态偏转）结果确定。此外，该数值模型被扩展以评估在可变机械载荷类型下混合复合材料浅壳板的动态挠度/应力响应的参数依赖性（纵横比、厚度比、曲率比、几何形状、混合方案和支撑条件）。