The aim of this work is to improve composite performance and enhance the through-thickness stiffness and strain to failure by addition of nano-enhanced thermoplastic composite stitching, thereby tailoring the out-of-plane properties to the loading condition. This work will build on collaboration with Institut für Flugzeugbau (IFB), Universität Stuttgart, an Aerospace OEM, Axis Composites, Patras University, Ulster University and Delhi Institute of Technology. On application of out-of-Plane Stresses in laminated composites the through-the-thickness or z-axis direction strength is notoriously weak, thus out-of-plane stresses are often the cause of premature failure. The induced out-of-plane stresses arise due to component geometries or the presence of damage. Delaminations are matrix cracks that lie in the plane of the laminate between plies. Structural instability under compressive loading is of greatest concern in the presence of delaminations. Various methods have been developed to improve the out-of-plane performance including z-pinning or resin toughening; one method that is becoming increasingly successful is to reinforce composites with a fibre that connects the layers together running from the upper to lower surface of the laminate.
This project will build on previous EPSRC funded research and international collaboration to develop the optimum stitch yarn properties using empirical and analytical methods, and then use polymer processing and textile technology to produce the optimised composite. The outcome of this project will provide a greater fundamental understanding of the manufacture and performance of thermoplastic stitched multi-axis, multi-layer reinforcements for advanced composite structures and place NI/UK in a much better position in this rapidly growing area. In particular the aerospace industry will be able to produce more efficient composite structures at a reduced cost. The academic community will also benefit since a new range of technical textiles will be available for analysis and further validation.
Applicants should hold, or expect to obtain, a First or Upper Second Class Honours Degree in a subject relevant to the proposed area of study.
We may also consider applications from those who hold equivalent qualifications, for example, a Lower Second Class Honours Degree plus a Master’s Degree with Distinction.
In exceptional circumstances, the University may consider a portfolio of evidence from applicants who have appropriate professional experience which is equivalent to the learning outcomes of an Honours degree in lieu of academic qualifications.
The University is an equal opportunities employer and welcomes applicants from all sections of the community, particularly from those with disabilities.
Appointment will be made on merit.
The University offers the following levels of support:
The following scholarship options are available to applicants worldwide:
These scholarships will cover full-time PhD tuition fees for three years (subject to satisfactory academic performance) and will provide a £900 per annum research training support grant (RTSG) to help support the PhD researcher.
Applicants who already hold a doctoral degree or who have been registered on a programme of research leading to the award of a doctoral degree on a full-time basis for more than one year (or part-time equivalent) are NOT eligible to apply for an award.
Please note: you will automatically be entered into the competition for the Full Award, unless you state otherwise in your application.
The scholarship will cover tuition fees at the Home rate and a maintenance allowance of £19,237 (tbc) per annum for three years (subject to satisfactory academic performance).
This scholarship also comes with £900 per annum for three years as a research training support grant (RTSG) allocation to help support the PhD researcher.
Due consideration should be given to financing your studies. Further information on cost of living
Submission deadline
Monday 19 February 2018
12:00AM
Interview Date
Mid March 2018
Preferred student start date
Mid September 2018
Telephone
Contact by phone
Email
Contact by email