The present study focuses on the experimental and analytical analysis of the deformability behaviour of the triaxial braided fabrics during forming. The mechanical model of the yarns based on the parameters of the reinforcements and the forming process was discussed. On the other hand, the geometric model related to the braiding angle was proposed to describe the yarns and the reinforcement deformations and to predict the yarns sliding. From the geometric model, the in-plane shearing and the material draw-in could also be predicted with respect to its magnitude and location on the braided fabric. It is clearly deduced from this study that the variation of deformability behaviours is directly impacted by the braiding angle, which is the crucial parameter for the braided fabrics.

本研究着重于三轴编织织物变形过程中的变形性能的实验和分析分析。讨论了基于增强参数和成型工艺的纱线力学模型。另一方面，提出了与编织角有关的几何模型，以描述纱线和增强变形，并预测纱线的滑动。根据几何模型，还可以根据其在编织织物上的大小和位置来预测面内剪切和材料引入。从这项研究中可以清楚地看出，可变形性的变化直接受到编织角的影响，而编织角是编织织物的关键参数。