Topology Optimisation of Continuous Fibre Reinforced Thermoplastic Composites for Additive Manufacturing
Structural optimisation is classified into shape, size and topology optimisation with a common goal to obtain structures with optimal stiffness, strength, weight and cost. As compared to shape and size, topology optimisation is a powerful and versatile design tool and can change freely the shape and topology of the design domain. Topology optimisation is considered an effective tool for design engineers in a variety of industrial applications including aerospace, automotive, biomedical, etc. The Additive manufacturing or 3D printing is a process of making solid parts from 3D CAD models by depositing material layer-by-layer. Fused deposition modelling (FDM) is one of the commonly used AM processes, used for manufacturing of parts with complex geometries and provide low cost, low material wastage and consistent accuracy. The printing of pure thermoplastic is still the dominant FDM process but are a poor fit for high-performance structural applications due to their low melting point and reduced strength and stiffness. The addition of reinforcing materials, e.g. chopped and continuous fibres can improve the properties of the parts including strength, stiffness, durability, heat resistance and dimensional stability. In chopped fibres reinforced thermoplastics composites, the direction of fibres is difficult to control and provide very limited improvement in the mechanical properties. On the other hand, reinforcing thermoplastics with continuous fibre improve the mechanical properties by an order of magnitude.
The PhD project aims to develop and implement topology optimisation based computational framework for the additive manufacturing of continuous carbon fibre reinforced thermoplastics composites for high-performance engineering applications. This will be achieved by completing the objectives outlined below:
•Development of a computational algorithm for the topology optimisation of continuous carbon fibre reinforced thermoplastics composites to simultaneously optimise the material distribution and local fibre directions within the design domain.
•Implementation of the developed topology optimisation algorithm in open-source or commercial finite element software for two- and three-dimensional problems.
•Post-processing and automatic conversion of the optimised geometries to CAD-based model to be suitable for manufacturing using the additive manufacturing process.
•Printing and mechanical testing of optimised geometries using a variety material system.
Aerospace Engineering overview
Doing a PhD in the School of Mechanical and Aerospace Engineering is a highly rewarding experience. You will carry out your research in a friendly and supportive environment, supervised by academics who are leaders in their field, using well-equipped laboratories and research facilities, alongside students from all over the world. At any time we have around 100 students enrolled on a PhD. The School has a vibrant PhD student mentoring programme and a student led Research Culture Committee.
The School’s research is focused around six interconnected research themes: Advanced Manufacturing and Processing, Future Aircraft, Composite Materials and Structures, Simulation Technologies, Clean Energy and Biomaterials and Biomechanics.
PhD opportunities are available in a wide range of subjects aligned to the specific expertise of our PhD supervisors. Many are linked with leading companies and organisations.
Research students are encouraged to play a full and active role in the research activities undertaken within the School. Students attend international conferences and participate in academic and industrial networks worldwide.
- The School has strategic partnerships with Rolls-Royce and Wrights supported by multiple large programmes (funders EPSRC, Innovate-UK, Advanced Propulsion Centre etc). There are opportunities for cutting edge, impactful PhDs within vibrant teams.
- The school also partners with a number of leading companies on a range of research challenges, including: Airbus, Artemis Technologies, Caterpillar, Ferrari, Ford, Jaguar Land Rover
- PhDs contribute to major centres, including: Advanced Manufacturing Innovation Centre (AMIC), Northern Ireland Advanced Composites and Engineering Centre (NIACE), Polymer Processing Research Centre (PPRC), Northern Ireland Technology Centre (NITC)
- The School has well equipped laboratories and great research facilities. PhD students share offices alongside postdoctoral staff. The School has Research Culture Committee to enhance the research environment of the School and support PhD students.
Employment after the Course
Many of our PhD graduates have moved into academic and research roles in Higher Education while others go on to play leading roles in industry, industry or become entrepreneurs.
People teaching you
Dr Trevor Robinson
Doctoral Programme Director
Mech & Aerospace Engineering
You will carry out leading research under the guidance of your supervisory team. A full time student will normally complete in three years (up to a maximum of four), or part time over six years (up to a maximum of eight).
Research will usually be in one of the key, interlinked research themes in the School, and the subtopics they cover, include:-
Advanced Manufacturing and Processing - cost modelling, ergonomics, intelligent control, laser processing, life cycle analysis, material characterisation, mechatronics, parallel kinematic machines, polymer processing, robotics and ultra-precision manufacturing.
Future Aircraft - aero engines, aerodynamics, aeroelasticity, aircraft operations, design and analysis, optimisation and structural testing
Composite Materials and Structures -damage mechanics and crashworthiness, material characterisation, multifunctional composites and nano-enhanced composites
Simulation Technologies - FEA/CFD/EFG/DES/MD, kinematic modelling, meshing, multiscale/Multiphysics, optimisation, simulation intent, systems modelling, uncertainty quantification, virtual testing and design visual analytics and big data
Clean Energy - biofuels, catalysis, life cycle assessment, power systems, turbomachinery and waste management
Biomaterials and Biomechanics - biomimetics, material characterisation, mechanobiology and medical devices.
Also, over the course of study, you can attend postgraduate skills training organised by the Graduate School, or other internal and external training courses organised through your supervisor.
The minimum academic requirement for admission to a research degree programme is normally an Upper Second Class Honours degree from a UK or ROI HE provider, or an equivalent qualification acceptable to the University. Further information can be obtained by contacting the School.
For information on international qualification equivalents, please check the specific information for your country.
English Language Requirements
Evidence of an IELTS* score of 6.0, with not less than 5.5 in any component (*taken within the last 2 years) is required.
International students wishing to apply to Queen's University Belfast (and for whom English is not their first language), must be able to demonstrate their proficiency in English in order to benefit fully from their course of study or research. Non-EEA nationals must also satisfy UK Visas and Immigration (UKVI) immigration requirements for English language for visa purposes.
For more information on English Language requirements for EEA and non-EEA nationals see: www.qub.ac.uk/EnglishLanguageReqs.
If you need to improve your English language skills before you enter this degree programme, INTO Queen's University Belfast offers a range of English language courses. These intensive and flexible courses are designed to improve your English ability for admission to this degree.
|Northern Ireland (NI) 1||£4,596|
|Republic of Ireland (ROI) 2||£4,596|
|England, Scotland or Wales (GB) 1||£4,596|
|EU Other 3||£22,700|
1 EU citizens in the EU Settlement Scheme, with settled or pre-settled status, are expected to be charged the NI or GB tuition fee based on where they are ordinarily resident, however this is provisional and subject to the publication of the Northern Ireland Assembly Student Fees Regulations. Students who are ROI nationals resident in GB are expected to be charged the GB fee, however this is provisional and subject to the publication of the Northern Ireland Assembly student fees Regulations.
2 It is expected that EU students who are ROI nationals resident in ROI will be eligible for NI tuition fees, in line with the Common Travel Agreement arrangements. The tuition fee set out above is provisional and subject to the publication of the Northern Ireland Assembly student fees Regulations.
3 EU Other students (excludes Republic of Ireland nationals living in GB, NI or ROI) are charged tuition fees in line with international fees.
All tuition fees quoted are for the academic year 2021-22, and relate to a single year of study unless stated otherwise. Tuition fees will be subject to an annual inflationary increase, unless explicitly stated otherwise.
Aerospace Engineering costs
There are no specific additional course costs associated with this programme.
Additional course costs
Depending on the programme of study, there may also be other extra costs which are not covered by tuition fees, which students will need to consider when planning their studies . Students can borrow books and access online learning resources from any Queen's library. If students wish to purchase recommended texts, rather than borrow them from the University Library, prices per text can range from £30 to £100. Students should also budget between £30 to £100 per year for photocopying, memory sticks and printing charges. Students may wish to consider purchasing an electronic device; costs will vary depending on the specification of the model chosen. There are also additional charges for graduation ceremonies, and library fines. In undertaking a research project students may incur costs associated with transport and/or materials, and there will also be additional costs for printing and binding the thesis. There may also be individually tailored research project expenses and students should consult directly with the School for further information.
Some research programmes incur an additional annual charge on top of the tuition fees, often referred to as a bench fee. Bench fees are charged when a programme (or a specific project) incurs extra costs such as those involved with specialist laboratory or field work. If you are required to pay bench fees they will be detailed on your offer letter. If you have any questions about Bench Fees these should be raised with your School at the application stage. Please note that, if you are being funded you will need to ensure your sponsor is aware of and has agreed to fund these additional costs before accepting your place.
How do I fund my study?1.PhD Opportunities
Find PhD opportunities and funded studentships by subject area.2.Funded Doctoral Training Programmes
We offer numerous opportunities for funded doctoral study in a world-class research environment. Our centres and partnerships, aim to seek out and nurture outstanding postgraduate research students, and provide targeted training and skills development.3.PhD loans
The Government offers doctoral loans of up to £26,445 for PhDs and equivalent postgraduate research programmes for English- or Welsh-resident UK and EU students.4.International Scholarships
Information on Postgraduate Research scholarships for international students.
Funding and Scholarships
The Funding & Scholarship Finder helps prospective and current students find funding to help cover costs towards a whole range of study related expenses.
How to Apply
Find a supervisor
If you're interested in a particular project, we suggest you contact the relevant academic before you apply, to introduce yourself and ask questions.
To find a potential supervisor aligned with your area of interest, or if you are unsure of who to contact, look through the staff profiles linked here.
You might be asked to provide a short outline of your proposal to help us identify potential supervisors.