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Challenges of Hybrid Laminar Flow Control (HLFC) in Aircraft Design and Manufacturing

Martin De La Escalera, F; Essa, Y; Castello, M Ángel; Pillai, U; Chiminelli, A; Lizaranzu, M; Maimi, P

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Authors

F Martin De La Escalera

Y Essa

M Ángel Castello

U Pillai

A Chiminelli

M Lizaranzu

P Maimi



Abstract

The purpose of this paper is to describe barriers and efforts made in the design of an aircraft in terms of reducing pollution emission into the atmosphere throughout the structural optimization of the aircraft's airfoils. In particular, the present work is focused on the design of a leading edge considering Hybrid Laminar Flow Control (HLFC) technology. The technological improvements of this topic are instilled through Clean Sky 2 platform. This will underpin innovative developments in the next generation of aircrafts; overcoming the risks and the technologies eventually to join the next market window to replace the current fleet. One of the most important challenges in the design of this device is the feasibility of manufacturing advanced composites through "out of autoclave" (OOA) processes. The aircraft component under study is a leading edge structure, in which it is required to join different materials such as carbon fiber laminates and thin Titanium sheet, considering the viability of adhesive layer. In particular, one of the key contributions of this work is identification of the issues that need to be addressed to demonstrate the feasibility of Ti-Carbon joints manufactured throughout OOA processes. Furthermore, the component has to satisfy the structural integrity criteria, which is a prime necessity in the aeronautical industry. Among others, challenges related with the design, manufacture of specimens, and the methodology of data reduction considering interlaminar failure modes, are taken into account in the present work. Likewise, aspects such as techniques for surface pre-treatment, environmental effects and integration are also discussed.

Citation

Martin De La Escalera, F., Essa, Y., Castello, M. Á., Pillai, U., Chiminelli, A., Lizaranzu, M., & Maimi, P. (2018, June). Challenges of Hybrid Laminar Flow Control (HLFC) in Aircraft Design and Manufacturing. Paper presented at ECCM18 - 18th European Conference on Composite Materials, Athens, Greece

Presentation Conference Type Conference Paper (unpublished)
Conference Name ECCM18 - 18th European Conference on Composite Materials
Conference Location Athens, Greece
Start Date Jun 24, 2018
End Date Jun 28, 2018
Acceptance Date Jun 25, 2018
Online Publication Date Jun 25, 2018
Publication Date Jun 25, 2018
Deposit Date Sep 2, 2019
Publicly Available Date Mar 28, 2024
Journal ECCM18 -18 th European Conference on Composite Materials
Keywords HLFC; adhesive joint; composite; titanium; OOA
Public URL https://nottingham-repository.worktribe.com/output/2515251
Related Public URLs https://pcoconvin.eventsair.com/QuickEventWebsitePortal/eccm/program/Agenda/AgendaItemDetail?id=fa4f1a47-a50d-4961-9d26-0de597652fe7
Additional Information This paper is part of the SAFE-FLY (Grant no 721455) and Clean Sky-2 projects (LPA-IADP-CS2-LPA-GAM-WP1.4.1.4) that have received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Actions

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