The present work involves the development of micromechanics based model of the woven fabric reinforced polymer composites and studying their dynamics. A higher-order finite element model of woven fibre composite beam is established after considering the modulus operator for both fibre and matrix. This micromechanical model is further validated with two other methods. In the first method, equivalent composite samples are prepared and tested in dynamic mechanical analyser to obtain the storage modulus and loss factor for a defined range of frequency. The experimental data are used to calculate viscoelastic parameters of the modulus operator and further utilised to bring down the equations of motion. In another method, modal testing of the same composite beam is conducted using an impact hammer connected to the Bruel & Kjaer FFT analyser. Modal parameters obtained from three techniques are compared to show the correctness of the mathematical model. The proposed micromechanics based model may be useful to accurately estimate the material characteristics of the viscoelastic composite without fabricating the samples or conducting explicit experiments.

目前的工作涉及开发基于微力学的机织织物增强聚合物复合材料模型并研究它们的动力学。在考虑纤维和基体的模量算子后，建立了编织纤维复合梁的高阶有限元模型。使用另外两种方法进一步验证了该微机械模型。在第一种方法中，制备等效复合材料样品并在动态力学分析仪中进行测试，以获得特定频率范围内的储能模量和损耗因子。实验数据用于计算模量算子的粘弹性参数，并进一步用于简化运动方程。在另一种方法中，使用连接到 Bruel & Kjaer FFT 分析仪的冲击锤对同一复合梁进行模态测试。比较从三种技术获得的模态参数，以显示数学模型的正确性。所提出的基于微力学的模型可用于准确估计粘弹性复合材料的材料特性，而无需制造样品或进行明确的实验。