Thermoplastic composite overmoulding is an integrated process to manufacture components with combined continuous and short fibre reinforcements. These components benefit from high intrinsic mechanical properties, geometric complexity and low production cycle times. In this study, ribbed plates were manufactured by overmoulding short-fibre CF/PPS (carbon fibre/polyphenylene sulphide) material onto continuous woven-fibre CF/PPS flat preforms. Specifically, the effects of the rib geometry and flow length on the process-induced features were investigated using optical microscopy. The bonding at the overmoulded interface was evaluated via quasi-static tensile rib pull-off tests. Results indicate that both the bond strength and corresponding failure type vary with rib geometry. However, the effects of the specimen position along the flow length are only significant towards the end path. The implications of certain rib designs are discussed both qualitatively and quantitatively, based on feature development at the overmoulded interface during manufacture.

热塑性复合材料包覆成型是制造具有连续和短纤维增强材料组合的组件的集成过程。这些组件得益于较高的固有机械性能，几何复杂性和较低的生产周期时间。在这项研究中，通过将短纤维CF / PPS（碳纤维/聚苯硫醚）材料包覆成型到连续的编织纤维CF / PPS扁平预成型坯上来制造肋板。具体而言，使用光学显微镜研究了肋的几何形状和流动长度对过程诱发特征的影响。通过准静态拉伸肋条拉拔测试评估了包覆成型界面处的粘结。结果表明，粘结强度和相应的破坏类型都随肋的几何形状而变化。然而，沿流动长度的试样位置的影响仅在最终路径上显着。基于制造过程中包覆成型界面处的特征发展，定性和定量地讨论了某些肋骨设计的含义。