Modelling of Dislocation-Microstructure Interaction at a Short Crack Tip PhD
- Mechanical, Electrical and Manufacturing Engineering
- Entry requirements:
- 3 years
- 6 years
- Reference number:
- Start date:
- 01 October 2018
- UK/EU fees:
- International fees:
- Application deadline:
- 09 March 2018
in the UK for research quality
in the UK for Mechanical Engineering
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Nickel-based superalloys are particularly used in applications involving high temperatures and stresses, such as the critical gas-turbine blades and discs in aerospace and power-generation industries. The behaviour of short cracks in nickel superalloys is of particular importance for component design and life prediction, as a large proportion of service life is spent in the growth of small cracks before final failure. This project aims to investigate the fundamental deformation mechanism at the tip of a short crack for nickel-based superalloys under fatigue at a range of temperatures. The research will focus on the influence of evolving local plasticity, induced by dislocation dynamics at the crack tip, on short crack growth. A multi-scale finite element (FE) method will be established for the crack-tip deformation analyses, which aims to identify a micromechanics-based driving force for short crack growth. The ultimate goal is to deliver an efficient finite element procedure to predict short crack growth.
The candidate will join the vibrant Mechanics of Advanced Materials research group at Loughborough University. Low cycle fatigue deformation and in-situ crack growth will be tested at both room and high temperatures, complemented by SEM/TEM characterisation. The results will be used to validate the multiscale models developed in this project. The research outcome will have significance in ensuring structural integrity of gas turbine systems.
Primary supervisor: Liguo Zhao
Secondary supervisor: TBC
Find out more
To find out more about the School of Mechanical, Electrical and Manufacturing Engineering, please visit our website.
Further information on the Mechanics and Advanced Materials Loughborough University Research Group can be found here.
Applicants should have, or expect to achieve, at least a 2:1 Honours degree (or equivalent) in Mechanical Engineering, Biomechanical Engineering, Solid Mechanics, Applied Mathematics, Materials Science, Physics or a related subject.
A relevant Master’s degree and/or experience in one or more of the following will be an advantage: Mechanical Engineering, Biomechanical Engineering, Solid Mechanics, Applied Mathematics, Materials Science, Physics.
All students must also meet the minimum English Language requirements.
Fees and funding
Tuition fees cover the cost of your teaching, assessment and operating University facilities such as the library, IT equipment and other support services. University fees and charges can be paid in advance and there are several methods of payment, including online payments and payment by instalment. Special arrangements are made for payments by part-time students.
This is an open call for candidates who are sponsored or who have their own funding. If you do not have funding, you may still apply, however Institutional funding is not guaranteed. Outstanding candidates (UK/EU/International) without funding will be considered for funding opportunities which may become available in the School.
How to apply
All applications should be made online. Under programme name select Mechanical and Manufacturing Engineering. Please quote reference number: LG1UF2018