Automated manufacture of 3D reinforced aerospace composite structures

Abstract

Purpose-This study is part of the FP7 project ADVITAC and focuses on exploring an innovative combination of cutting edge technologies to be implemented within automated processes for composite parts manufacturing. The objective is the design of a production route for components with tailored fibre orientation and ply lay-up, with improved damage tolerance thanks to through-the-thickness reinforcement and integrated health monitoring systems based on optical fibres technology. Design/Methodology/Approach-The proposed technologies are described in detail and their compatibility and potential for integration are discussed. A set up for on-line monitoring of infusion and curing processes of carbon/epoxy laminates preformed by dry fibre placement technology is proposed, and a preliminary study of their mechanical performance is presented. The possibility of reinforcing through-the-thickness preforms manufactured with dry slit tapes automatically laid-up and consolidated by laser heating is investigated. Findings-Improved knowledge of interaction/compatibility between the discussed technologies and scope for application. Research limitations/implications (if applicable)-The paper reports the technical potential and practical feasibility of the proposed integrated production process. Limited quantitative evaluations on the materials performance are provided. The analysis of the technologies involved represents the early outcome of the ongoing ADVITAC project. Practical implications (if applicable)-This study contributes to the identification of a new generation of composite architecture which allows production cost and weight savings while retaining the level of quality suitable for demanding structural applications, with particular relevance to the aerospace field.

Novel form-flexible handling and joining tool for automated preforming

“…Similar to Automated Fiber Placement (AFP) for prepregs, a set of binder-impregnated rovings is continuously placed on a mold and bonded using infrared heating by a fiber placement head, typically connected to a portal or industrial robot. ADFP allows high quality, high flexibility and precision of fiber placement and orientation as well as reducing material wastage [13,14].…”

Real-Time Control System for Improved Precision and Throughput in an Ultrafast Carbon Fiber Placement Robot Using a SoC FPGA Extended Processing Platform

“…The robot, as well as the whole cell, complies with aeronautic specifications in terms of fiber placement and cutting accuracy as well as the repeatability of the process [40].…”

Comprehensive Analysis of Mechanical Behavior and Fracture Processes of Specimens of Three-Dimensional Reinforced Carbon Fiber in Tensile Tests

“…В аэрокосмической промышленности, машиностроении, авиа-и судостроении, металлургии и энергетике, где материал работает в сложных условиях воздействия, при наличии вибраций и высоких температур, используются пространственно-армированные композиционные материалы [1][2][3]. В научной литературе активно поднимаются вопросы, связанные с технологическими аспектами изготовления трехмерных тканей с заданными свойствами [2][3][4] и их применением. Формирование научно-технического задела для проектирования деталей и элементов конструкций из 3D-композитов [5][6][7] требует проведения комплексных экспериментальных исследований влияния типов переплетения на механические и прочностные характеристики при статических [8][9][10][11][12][13], циклических [14,15] и динамических нагружениях [16].…”