The ever increasing size of wind turbines has given rise to a need for robust glass to carbon joint designs. This study investigates the effect of different ply layups on the static and fatigue behaviour of hybrid glass/carbon fibre composite joints. Uni-directional carbon fibre prepreg was co-cured to 8H glass prepreg using an overlap to thickness ratio of 20:1, where four joint designs were examined: scarf, interleaving and two forms of double scarf. The joints were tested statically in uniaxial tension and dynamically in tension-tension fatigue. Finite element analysis has been performed to provide insight into stress distributions within each joint. The double scarf joint (with glass on the outside) was found to perform best in fatigue and static tension, while the interleaving joint performed second best in fatigue in static tension but poorest in fatigue. For joint designs that will be used under highly stressed cyclic loading conditions, the current study indicates that static tests alone are a poor indicator of the joint performance and fatigue tests are required.

风力涡轮机的尺寸不断增加，因此需要坚固的玻璃碳接头设计。这项研究调查了不同层板叠层对混合玻璃/碳纤维复合材料接头的静态和疲劳行为的影响。使用厚度与厚度之比为20：1的单向碳纤维预浸料共固化为8H玻璃预浸料，其中检查了四个接缝设计：围巾，交织和两种形式的双层围巾。对关节进行了单轴拉伸静态测试，并进行了拉伸-拉伸疲劳动态测试。进行了有限元分析，以深入了解每个接头内的应力分布。发现双层围巾接缝（外部带玻璃）在疲劳和静态张力方面表现最佳，而交织关节的静态张力疲劳表现第二好，而疲劳强度最差。对于将在高应力循环载荷条件下使用的接头设计，当前的研究表明，仅静态测试不足以指示接头性能，因此需要进行疲劳测试。