Please use this identifier to cite or link to this item: https://hdl.handle.net/10953/3239
Title: Enhanced Low-Velocity Impact Properties for Resin Film Infusion-Manufactured Composites by Flow-Control Approach
Authors: Almazán Lázaro, Juan A.
López Alba
Schmeer, Sebastian
Díaz Garrido, Francisco A.
Abstract: The optimization of the mechanical properties of composite materials has been a challenge since these materials were first used, especially in aeronautics. Reduced energy consumption, safety and reliability are mandatory to achieve a sustainable use of composite materials. The mechanical properties of composites are closely related to the amount of defects in the materials. Voids are known as one of the most important defect sources in resin film infusion (RFI)-manufactured composites. Minimizing the defect content leads to maximized mechanical properties and lightweight design. In this paper, a novel methodology based on computer vision is applied to control the impregnation velocity, reduce the void content and enhance the impact properties. Optimized drop-impact properties were found once the impregnation velocity was analyzed and optimized. Its application in both conventional and stitching-reinforced composites concludes with an improvement in the damage threshold load, peak force and damaged area. Although stitching tends to generate additional voids and reduces in-plane properties, the reduction in the damaged area means a positive balance in the mechanical properties. At the same time, the novel methodology provides the RFI process with a noticeable level of automation and control. Consequently, the industrial interest and the range of applications of this process are enhanced
Keywords: composite
reinforced
polymer
manufacturing
impact
optimization
stitching
Issue Date: 6-Oct-2021
metadata.dc.description.sponsorship: Airbus Defence and Space, Leibniz Institut für Verbundwerkstoffe GmbH
Publisher: Multidisciplinary Digital Publishing Institute
Appears in Collections:DIMM-Artículos

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