Design of a unitized thermoplastic composite out-of-autoclave three-bay wingbox demonstrator

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Design of primary structural parts for aerospace applications is a challenging process. When it comes to multi-part units such as a wingbox, it becomes even more demanding due to added complexity arising from assembly and integration processes, together with their associated considerations and limitations. In this work, a three-meter long, variable stiffness, three-bay, thermoplastic composite wingbox structure with integrated stiffeners is designed for prescribed buckling and post-buckling performances. The design considers prescribed load cases for a real testing scenario. Stiffeners are integrated into the top and bottom panels of the wingbox and two spars are blended in the structure, making it a single piece with no fasteners or joints. A manhole is also introduced into the bottom skin for access purposes, around which the tows are steered to reduce strain concentrations and weight. Tow steering is also investigated for improved load carrying capacity of skin bays subjected to compression-induced buckling. Finally, the design solutions are verified by performing virtual testing via finite element analysis.

Original languageEnglish
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-16
Number of pages16
ISBN (Print)9781624106095
Publication statusPublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: 11 Jan 202115 Jan 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period11/01/2115/01/21

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