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Institution: University of Surry
Royaume-Uni
Retrouvé: : 2021-10-11 Expiré
Description :

Applications are invited for a post-doctoral research position in the area of Fatigue Analysis of Metallic Bridges based at the University of Surrey. The post is funded by Network Rail and is part of a research project on “Metallic Bridge Fatigue". A global physical test of a full-scale metallic riveted bridge extracted from service has been carried out at the University of Surrey where displacement and strain measurements have been obtained at various locations on the bridge. Currently, a large laboratory test programme on component and material fatigue specimens of riveted members/connections extracted from the bridge is underway. The purpose of these tests is:

to provide load-displacement measurements that can be compared with in service monitoring measurements obtained under actual railway loading before the bridge was removed from service. to provide evidence on the U-frame action in the bridge in its current condition (through horizontal and vertical displacement readings under specified loading); this will be used to inform the testing of components under static/fatigue loading, in particular the boundary conditions that will need to be achieved. to assist towards the development and calibration of the global numerical bridge model and the local numerical connection models to be used for subsequent fatigue assessment calculations.

The overall aim of the project is to use the experimental and numerical results generated through the above mentioned activities in suggesting improved methods for fatigue assessment of riveted bridges in the Network Rail stock. The project is undertaken in collaboration with Mott MacDonald who are responsible for the development of relevant guidance documents used in railway asset management.

The successful candidate will be involved in the following activities:

Undertake analysis of experimental data obtained under field conditions by the appointed measurement contractor Calibrate / validate analytical/numerical models using results from physical tests Oversee instrumentation of laboratory specimens Undertake analysis of experimental data obtained under laboratory/field conditions Develop, use, and where necessary adapt, finite element models (FEM) for global/local response and compare FEM simulated behaviour with behaviour in physical tests Contribute to the development of recommendations regarding the fatigue performance of metallic bridges

The post-doctoral researcher will be working under the direction of Dr Boulent Imam and Professor Marios Chryssanthopoulos and will participate in progress meetings with Network Rail and Mott MacDonald engineers. The successful candidate will possess a PhD in structural mechanics/ engineering, excellent technical writing and presentation skills, a thorough knowledge of finite element analysis and principles of finite element modelling, both global and local, in metallic structures and a solid grasp of theoretical and experimental methods for fatigue analysis / assessment of metallic structures. Highly important is an understanding of experimental techniques for metallic structures and relevant experience in specifying and analysing test data obtained using strain, displacement and acceleration sensors. Experience with NDT applications in metallic structures would be desirable.

Please note, it is University Policy to offer a starting salary equivalent to Level 3.6 (£31,866) to successful applicants who have been awarded, but are yet to receive, their PhD certificate. Once the original PhD certificate has been submitted to the local HR Department, the salary will be increased to Level 4.1 (£32,817).

This position is initially for 12 months, with the potential of being extended further, starting on 1 November 2021 or as soon as possible thereafter.

Please apply online and include:

(i)  a 2-page curriculum vitae (including qualifications, publications and two references).

(ii)  a 2-page supporting statement, outlining how you meet the criteria listed on the Person Specification.

For an informal discussion about the role, please contact Dr Boulent Imam via email at b.imam@surrey.ac.uk

Closing Date: 18 Oct 2021
Category: Research & Teaching





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