This research aims to optimize the mechanical properties of woven fabric composites, especially the elastic modulus. A micromechanics model of woven fabric composites was used to obtain the mechanical properties of the fiber composite, and a genetic algorithm (GA) was employed for the optimization tool. The structure of the fabric fiber was expressed using the width, thickness, and wave pattern of the fiber strands in the woven fabric composites. In the GA, the chromosome string consisted of the thickness and width of the fill and warp strands, and the objective function was determined to maximize the elastic modulus of the composite. Numerical analysis showed that the longitudinal mechanical properties of the strands contributed significantly to the overall elastic modulus of the composites because the longitudinal property was notably larger than the transverse property. Therefore, to improve the in-plane elastic modulus, the resulting geometry of the composites possessed large volumes of related strands with large cross-sectional areas and small strand waviness. However, the numerical results of the out-of-plane elastic modulus generated large strand waviness, which contributed to the fiber alignment in the out-of-plane direction. The findings of this research are expected to be an excellent resource for the structural design of woven fabric composites.

这项研究旨在优化机织织物复合材料的机械性能，尤其是弹性模量。使用机织织物复合材料的微力学模型获得纤维复合材料的力学性能，并使用遗传算法（GA）作为优化工具。织物纤维的结构用织物复合材料中纤维股的宽度，厚度和波型表示。在遗传算法中，染色体串由填充线和经线的厚度和宽度组成，确定目标函数以使复合材料的弹性模量最大化。数值分析表明，股线的纵向机械性能对复合材料的整体弹性模量有显着影响，因为纵向性能明显大于横向性能。因此，为了改善面内弹性模量，所得到的复合材料的几何形状具有大体积的相关绞合线，所述相关绞合线具有大的横截面积和较小的绞合度。但是，面外弹性模量的数值结果产生大的股线波纹度，这有助于纤维在面外方向上排列。预期该研究的发现将为机织织物复合材料的结构设计提供极好的资源。所得复合材料的几何形状具有大量相关的股线，这些股股线具有较大的横截面积和较小的股线波纹度。但是，面外弹性模量的数值结果产生大的股线波纹度，这有助于纤维在面外方向上排列。预期该研究的发现将为机织织物复合材料的结构设计提供极好的资源。所得复合材料的几何形状具有大量相关的股线，这些股股线具有较大的横截面积和较小的股线波纹度。但是，面外弹性模量的数值结果产生大的股线波纹度，这有助于纤维在面外方向上排列。预期该研究的发现将为机织织物复合材料的结构设计提供极好的资源。