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Automated manufacture of 3D reinforced aerospace composite structures

机译:自动化制造3D增强航空复合材料结构

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摘要

Purpose- This study is part of the FP7 project ADVITAC and focuses on exploringan innovative combination of cutting edge technologies to be implemented withinautomated processes for composite parts manufacturing. The objective is thedesign of a production route for components with tailored fibre orientation andply lay-up, with improved damage tolerance thanks to through-the-thicknessreinforcement and integrated health monitoring systems based on optical fibrestechnology.Design/Methodology/Approach- The proposed technologies are described in detailand their compatibility and potential for integration are discussed. A set upfor on-line monitoring of infusion and curing processes of carbon/epoxylaminates preformed by dry fibre placement technology is proposed, and apreliminary study of their mechanical performance is presented. The possibilityof reinforcing through-the-thickness preforms manufactured with dry slit tapesautomatically laid-up and consolidated by laser heating is investigated.Findings- Improved knowledge of interaction/compatibility between the discussedtechnologies and scope for application.Research limitations/implications- The paper reports the technical potential andpractical feasibility of the proposed integrated production process. Limitedquantitative evaluations on the materials performance are provided. The analysisof the technologies involved represents the early outcome of the ongoing ADVITACproject.Practical implications- This study contributes to the identification of a newgeneration of composite architecture which allows production cost and weightsavings while retaining the level of quality suitable for demanding structuralapplications, with particular relevance to the aerospace field.Originality/value- This paper investigates for the first time the practicalpossibility of designing a single automated process involving dry fibreplacement, tufting and optical fibre sensor monitoring for the production ofcomplex composite components.
机译:目的-这项研究是FP7项目ADVITAC的一部分,致力于研究将在尖端技术的创新组合,以在复合零件制造的自动化流程中实施。目标是设计具有定制的纤维取向和铺层的组件的生产路线,这要归功于厚度增强和基于光纤技术的集成健康监控系统,从而提高了损伤承受能力。设计/方法/方法-拟议的技术是详细介绍了它们的兼容性,并讨论了它们的兼容性和集成潜力。提出了一种通过干纤维铺放技术对碳/环氧层压板的浸渍和固化过程进行在线监测的装置,并对其力学性能进行了初步研究。研究了用自动加热敷设并通过激光加热固结的干狭缝胶带制造的全厚度预成型件的可能性。发现-讨论的技术之间的相互作用/相容性和适用范围的知识有所提高。研究局限/意义-本文报道了拟议的综合生产工艺的技术潜力和实践可行性。提供了对材料性能的定量评估。所涉及的技术分析代表了正在进行的ADVITAC项目的早期结果。实际意义-这项研究有助于确定新一代复合材料结构,该结构既可以降低生产成本,又可以减轻重量,同时又保留了适合要求苛刻的结构应用的质量水平,尤其与原创性/价值-本文首次研究了设计一个自动化过程的实际可行性,该过程涉及干燥纤维的放置,簇绒和光纤传感器监控,以生产复杂的复合材料组件。

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