The behavior of dry fibers is a key component in modeling composite materials. However, it can become very expensive in computation time to model each individual filament. We propose here a new multi-scale method featuring beam elements embedded in truss elements. Truss elements are used to model contact responses and traction while beams elements are used to characterize flexion. This approach is compared to three different models using truss elements only, beam elements only, and a reference case. The reference case is also validated by experimental results of a glass braid being extended to drape over a square mandrel. The embedded element cumulative error on estimation of the deformed braid angle, thickness and length compared to the reference case is lower than their pure truss and pure beam models, while being 8 times faster than the reference case.

干纤维的行为是模拟复合材料的关键组成部分。然而，对每个单独的灯丝进行建模在计算时间上会变得非常昂贵。我们在这里提出了一种新的多尺度方法，其特点是梁单元嵌入桁架单元。桁架单元用于模拟接触响应和牵引力，而梁单元用于表征弯曲。将此方法与仅使用桁架单元、仅使用梁单元和参考案例的三种不同模型进行比较。参考案例还通过将玻璃编织物延伸以覆盖在方形心轴上的实验结果进行了验证。与参考案例相比，估计变形编织角、厚度和长度的嵌入单元累积误差低于其纯桁架和纯梁模型，