Structural Design and Analysis of a 3D Fabric-Reinforced Composite Outlet Guide Vane

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dc.contributor.authorCoates, Fiona
dc.contributor.authorEricsson , Walther P
dc.contributor.authorHughes, Emily
dc.contributor.authorJinneryd, Daniel
dc.contributor.authorOlsson, Jakob
dc.contributor.authorRindsäter, Anthon
dc.contributor.departmentChalmers tekniska högskola / Institutionen för industri- och materialvetenskapsv
dc.contributor.departmentChalmers University of Technology / Department of Industrial and Materials Scienceen
dc.contributor.examinerEkh, Magnus
dc.contributor.supervisorOddy, Carolyn
dc.date.accessioned2024-09-16T09:30:09Z
dc.date.available2024-09-16T09:30:09Z
dc.date.issued2024
dc.date.submitted
dc.description.abstractHistory shows that commercial airline engines have become larger and heavier. Due to the close relation between engine weight and fuel efficiency, a weight reduction would reduce aviation’s carbon footprint. The introduction of composite materials, in particular those with carbon fibre reinforcements, to replace traditional metallic alloys is one avenue to create lighter aeroengines. This work focuses on an innovative class of composite material with 3D fabricreinforcement. By having fabric-reinforcement in three dimensions one can overcome a number of challenges found in traditional laminated composite, such as their susceptibility for delamination and poor out-of-plane properties. The aim of this study is to clarify the mechanical and thermal properties of 3D fabricreinforced composite materials across different scales. This is in order to propose a final suitable 3D orthogonal non-woven yarn architecture for an Outlet Guide Vane (OGV) in an aero engine. Firstly, the microscale characteristics of these materials are examined, considering the combination of an epoxy matrix and carbon fibres, to provide insights into their mechanical and thermal behaviour. Subsequently, this thesis delves into the mesoscale, integrating micro-mechanical properties of the yarns and polymer matrix properties to tailor the fibre distribution within the yarn structure, aiming to meet the failure criteria on the macroscale. Moreover, it investigates the hypothesis that off-axis yarns enhance shear stiffness moduli, utilising modelling and simulation techniques. Through simulations on the macroscale, the study validates the mechanical elastic properties of the composite material, ensuring its adequacy for the prescribed failure criteria. Furthermore, it predicts and analyses heat transfer effects across the orthogonal non-woven yarn structure when embedded with a thermal element, leveraging calculated thermal properties. Lastly, informed by findings on the macroscale, a final composite yarn structure is proposed that is suitable for application in the designated OGV context. This comprehensive investigation contributes to advancing the understanding of composite materials, particularly in aerospace applications.
dc.identifier.coursecodeIMSX16
dc.identifier.urihttp://hdl.handle.net/20.500.12380/308619
dc.language.isoeng
dc.setspec.uppsokTechnology
dc.subject3D orthogonal non-woven composite
dc.subjectFailure
dc.subjectFinite element method
dc.subjectHomogenisation
dc.subjectMechanical properties
dc.subjectOrthotropic
dc.subjectRVE
dc.subjectTextile Structure Modelling
dc.subjectThermal properties
dc.titleStructural Design and Analysis of a 3D Fabric-Reinforced Composite Outlet Guide Vane
dc.type.degreeExamensarbete på kandidatnivåsv
dc.type.degreeBachelor Thesisen
dc.type.uppsokM2
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