多向纤维缠绕预制件的纤维取向

以一个缠绕循环为基础,建立了多向纤维缠绕预制件中一个体积微元的纤维取向(包括轴向取向、径向取向、环向取向)的计算模型。重点对工艺参数中缠绕角、纤维截面直径、缠绕初始半径等与环向取向和轴向取向纤维体积含量的关系进行了分析研究,并绘制了其关系曲线图。最后计算了轴向取向和环向取向纤维体积含量相等时缠绕角的值。为多向纤维缠绕预制件的结构设计、工艺设计提供很好的理论基础。

Fiber orientation of multidirectional filament winding prefabricated piece

Based on a winding cycle of filaments,a calculating model was proposed for the fiber orientation(including axial,radial and hoop orientation) of a unit cell of prefabricated piece of the multidirectional filament winding with focus on investigating the relationship between the fiber volume fraction of hoop orientation,fiber volume fraction of axial orientation and the process parameters such as the initial filament winding radius,the filament winding angle,and the fiber diameter.The curves of their relationship were plotted.The filament winding angle when the fiber volume fraction of hoop orientation was equal to that of axial orientation was calculated.This will provide a sound theoretical basis for the structural design and process design of prefabricated piece of multidirectional filament winding.