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glimbert55
10-03-2010, 04:13 AM
PHD STUDENTSHIP (Ref: SES-80-144):
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PHYSICS-BASED MODELLING OF WEAR OF UHMWPE USED IN TOTAL JOINT REPLACEMENT. A NOVEL APPROACH BASED ON A COMBINATION OF LEVEL SET AND FINITE ELEMENT METHODS

National Centre for Advanced Tribology at Southampton (nCATS) &
Bioengineering Sciences Research Group
School of Engineering Sciences
UNIVERSITY OF SOUTHAMPTON, UK


A PhD studentship is available immediately in the national Centre for advanced Tribology at Southampton (nCATS), School of Engineering Sciences (SES), which fully covers University tuition fees (at EU/UK level**) and provides a tax-free bursary of 13,600 per year, rising annually (each October) in line with the UK Government (EPSRC) recommended rate, for a 3-year duration. **EU/UK fees 3500 p.a., Overseas fees 15,500 p.a. (figures to be confirmed, and subject to annual increase).

There is NO additional funding available for overseas fees. We regret it will not be possible to consider your application unless you can provide funding from other sources to pay the fees difference (~12,000 for 2010/11)

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** THE POST WILL BE ADVERTISED UNTIL THE POSITION HAS BEEN FILLED **
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PROJECT DESCRIPTION
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Wear of Ultra High Molecular Weight Polyethylene (UHMWPE) is the limiting factor influencing the longevity of total joint replacement (TJR). Currently, wear of TJR designs is assessed through experimental tests, but these are expensive, time consuming and as a consequence are only able to assess a limited range of activities. Rigid body dynamics and finite element techniques have been developed to simulate wear. They provide greater flexibility and allow a more rigorous analysis of the wear potential for new implant designs. However, current techniques do not account explicitly for material removal and complex multi-phase interactions.

Borrowing recent ideas from computer graphics developed for the movie and gaming industries, the goal of this project is to develop a generic computational modelling platform combining level set and fast marching methods together with finite element techniques to simulate explicitly the wear of UHMWPE. Level set and/or fast marching methods will be used to track interfaces between virgin and worn UHMWPE phases while finite element techniques will handle the physics-based constitutive equations describing the behaviour of UHMWPE.

The project will involve a close interaction with the Schools of Mathematics and Engineering Sciences and therefore a multi-disciplinary approach to this research will be essential. External collaborations with national/international groups involved in advanced numerical techniques will be strongly encouraged.

The ideal candidate will have a background/interest in any of the following topics:
Applied mathematics
Mathematical and computational modelling techniques
Continuum mechanics
Computer Science
Computer Graphics

Ability to program in any appropriate programming language (C, Fortran, Matlab or Python) and experience in a finite element application such as ABAQUS, COMSOL, ANSYS, MARC and/or mathematics packages such as Mathematica, Maple or Matlab would be a definite advantage. However, relevant training will be provided.



ABOUT THE SCHOOL OF ENGINEERING SCIENCES, UNIVERSITY OF SOUTHAMPTON
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The School of Engineering Sciences at the University of Southampton has an international reputation for research excellence. In the 2008 UK Research Assessment Exercise, the School (in collaboration with the Institute of Sound & Vibration Research) ranked second in the total number of Unit 28 academics whose research was deemed world leading or internationally excellent.

The national Centre for Advanced Tribology at Southampton (nCATS) has recently been created from a 10M initiative, funded by EPSRC, to prepare the next generation of engineers to underpin tribology in the UK. nCATS will exploit strong interdisciplinary collaborations across the University (marine biology, chemistry, electrochemistry, mechanical engineering, medicine, statistics, applied mathematics and electronics) to develop smart / multifunctional surfaces and predictive tools for advanced tribological interactions A strategic research alliance with over 28 leading international industry partners is also in place to explore the critical tribological design issues and enable surface interactions to occur with minimal energy loss and impact on the environment.

The School is a diverse community which is committed to creating an inclusive working and learning environment in which all individuals are equally treated and valued, and can achieve their potential. The School considers all studentship applications in relation to academic criteria and regardless of the individual's race, nationality, gender, or belief.



ENTRY REQUIREMENTS
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Entry requirements: Candidates will have a first class or upper second class degree (or its equivalent) in relevant disciplines, for example:

Applied Mathematics
Physics
Mechanical Engineering
Computational Physics/Engineering
Computer Science
Computer Graphics



APPLICATION PROCESS
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The studentship is at the standard EPSRC (Engineering and Physical Sciences Research Council) rate, commencing as soon as possible.

Closing date for applications: A rolling deadline applies and the position will remain available until filled.

If you wish to discuss any details of the project informally, please contact Dr. Georges Limbert, nCATS & Bioengineering Science Research Group, Email: g.limbert@soton.ac.uk, Tel: +44 (0) 2380 59 2381.

How to apply:
An on-line application form (or hard copy version) with guidance notes can be accessed here: http://www.soton.ac.uk/ses/courses/pg/pgapply.html

Please read the notes carefully before applying. Applications will only be considered on receipt of a completed application form.

Please send supporting documents by email. If you are unable to send them by email, please send by fax or post to the following address:
Julia Zimbler, Postgraduate Admissions, Graduate School Office, School of Engineering Sciences, Room 5013, Lanchester Building, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
Email: jfz@soton.ac.uk, Fax: +44 (0) 2380 59 5167.

Please include a personal statement (~300 words) stating why you particularly want to do a PhD, why you think you are suited to a research degree and what particularly attracts you to this project.

Please also visit the SES homepage: www.ses.soton.ac.uk for further information about research groups, research programmes, details of funded opportunities, and studentships.