A complete simulation process chain has been used to predict the production and subsequent injection of over-braided textile preforms. A range of mandrel geometries and braiding configurations were used to illustrate how these factors affect the resin injection of the part. Braiding simulations were first completed, predicting the geometry of the braided textile throughout the mandrel. Following this, a range of multi-layered unit-cells were modelled, capturing the variations in geometry. These virtual stacks were produced with both no and maximum in-plane ply shift so as to capture the range of stacking configurations possible. Following a compaction simulation of these stacks, their in-plane permeability tensor was predicted and used to identify the permeability of the braided preform at different regions. This was used to predict the propagation of the resin flow front, highlighting the effects that the mandrel geometry, braiding process parameters and stacking method have on the resulting resin injection.

完整的模拟过程链已用于预测编织过度的纺织品预成型件的生产和随后的注射。使用一系列的心轴几何形状和编织构型来说明这些因素如何影响零件的树脂注入。编织仿真首先完成，可以预测整个心轴上编织织物的几何形状。之后，对一系列多层单元进行了建模，捕获了几何形状的变化。生产这些虚拟堆叠时，既没有铺层移位也没有最大平面铺层移位，以便捕获可能的堆叠配置范围。在对这些叠层进行压实模拟之后，预测了它们的面内渗透率张量，并将其用于识别编织预制件在不同区域的渗透率。