Automated fibre placement-based manufacturing technology is increasingly being used in several engineering applications. Manufacture of carbon fibre-reinforced plastic’s small/large structures have been made possible due to its remarkable capabilities like productivity and accuracy. Nevertheless, making high-quality composite laminate using automated fibre placement relies on the proper selection of critical processing variables to avoid internal flaws during the fibre placement process. Consequently, a reliable non-destructive inspection technique is required for quality assurance and structural integrity of fabricated laminates. Neutron radiography/tomography offers unique imaging capabilities over a wide range of applications including fibre-reinforced polymer composites. The application of this technique towards tomographic reconstruction of automated fibre placement-made thermoplastic composites is presented in this paper. It is shown that the porosity analysis using neutron imaging technique provides reliable information. Additionally, using such technique valuable data regarding the size and the location of the voids in the laminate can be acquired and informed. This will assist the composite structural analysts and designers to select the appropriate processing parameters towards a defect free automated fibre placement part manufacture.

中文翻译：

---

使用自动纤维铺放制造的碳纤维增强聚合物层压板的孔隙率分析

基于自动化纤维铺放的制造技术越来越多地用于多种工程应用。碳纤维增强塑料的小型/大型结构的制造由于其卓越的生产力和精度等能力而成为可能。然而，使用自动纤维铺放制造高质量复合层压板依赖于关键加工变量的正确选择，以避免在纤维铺放过程中出现内部缺陷。因此，需要可靠的无损检测技术来保证制造层压板的质量和结构完整性。中子射线照相/断层扫描在包括纤维增强聚合物复合材料在内的广泛应用中提供独特的成像能力。本文介绍了该技术在自动纤维铺放热塑性复合材料的断层扫描重建中的应用。结果表明，使用中子成像技术进行的孔隙度分析提供了可靠的信息。此外，使用这种技术可以获得和告知有关层压材料中空隙的大小和位置的有价值的数据。这将有助于复合材料结构分析师和设计师选择合适的加工参数，以实现无缺陷的自动纤维铺放部件制造。使用这种技术，可以获取和告知有关层压板中空隙的大小和位置的宝贵数据。这将帮助复合材料结构分析师和设计师选择合适的加工参数，以实现无缺陷的自动纤维铺放部件制造。使用这种技术，可以获取和告知有关层压板中空隙的大小和位置的宝贵数据。这将有助于复合材料结构分析师和设计师选择合适的加工参数，以实现无缺陷的自动纤维铺放部件制造。