A detailed study is conducted to investigate the effect of silicon carbide (SiC) particles on the mechanical behaviour of viscoelastic woven glass/epoxy composite. A novel operator based micromechanical modelling in conjunction with finite element formulation of hybrid composite is derived considering the modulus operator for fibre, matrix as well as filler particles. A time-domain higher-order equation of motion is then developed to obtain frequency response and modal damping parameters. These dynamic parameters are verified with free vibration experiments conducted using an impact hammer and an accelerometer connected to a device loaded with B&K PULSE software. The predicted results are found to be in good convergence with the experiments. Further, it is also observed that damping ratio increases while natural frequency decreases with increase in SiC content. Moreover, the proposed micromechanical model can efficiently estimate the dynamic characteristics of hybrid woven composites without even fabricating samples and conducting explicit experiments, thus saving time and cost.

进行了详细的研究，以研究碳化硅（SiC）颗粒对粘弹性玻璃/环氧树脂复合材料力学性能的影响。考虑到纤维，基体以及填料颗粒的模量算子，得出了一种基于算子的新型微机械模型，并结合了混合复合材料的有限元公式。然后建立时域高阶运动方程，以获得频率响应和模态阻尼参数。这些动态参数通过使用冲击锤和连接到装有B＆K PULSE软件的设备的加速度计进行的自由振动实验来验证。发现预测结果与实验具有很好的收敛性。进一步，还观察到，随着SiC含量的增加，阻尼比增加，而固有频率降低。此外，所提出的微力学模型可以有效地估计混杂编织复合材料的动态特性，而无需制作样品并进行明确的实验，从而节省了时间和成本。