An experimental investigation is presented into improving the maximum load limit and other structural properties of T-shaped laminate joints by through-thickness weaving of thin metal filaments. Preforms of carbon fibre T-joints are first woven using continuous metallic or fibrous filaments made of copper, steel or carbon fibre yarns and then infused with epoxy. Stiffener pull-off tests performed on the cured T-joints show that the stainless steel z-filaments yield greater improvements to the strength and absorbed energy capacity than fibrous carbon fibre filaments by up to 80% and 30%, respectively, while copper filaments yield a smaller improvement than carbon fibre filaments. The levels of strengthening by the z-filaments depend on their volume fraction and material type, with stainless steel being more effective than copper or carbon. This study demonstrates that through-thickness weaving of continuous metallic filaments are highly effective at strengthening and toughening T-joints made of laminated composites.

进行了一项实验研究，目的是通过细金属丝的全厚度编织来改善T形层压板接头的最大载荷极限和其他结构性能。碳纤维T型接头的预成型件首先使用由铜，钢或碳纤维纱制成的连续金属或纤维长丝编织而成，然后注入环氧树脂。在固化的T形接头上进行的加劲肋拉拔试验表明，与碳纤维纤维相比，z形不锈钢丝对强度和吸收能的改善更大，分别提高了80％和30％，而铜纤维则提高了比碳纤维长丝的改进要小。z丝的增强程度取决于其体积分数和材料类型，其中不锈钢比铜或碳更有效。