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Computational Framework for Metal Forming of High Strength Alloys


Project Description

Conventional sheet metal forming processes involve high cost and lead times because of design and manufacturing of product specific tooling for new materials and parts. In some cases macro scale models are used to perform virtual experiments, however such macro scale models are not based on realistic physical mechanisms and thus predictions aren’t accurate.

The proposed PhD work is a part of the bigger project whose aim is to develop a physics based multiscale computational framework which accounts for real life physical mechanisms observed during experiments.

Recent experimental studies performed by the proposer [1-4] and others have shown that high strength aerospace alloys show extensive twinning and lattice rotation during deformation while some of the alloys show deformation induced phase transformation causing a change in deformation behaviour. Things get more complicated once damage starts to nucleate and start to form microvoids, and cracks. The evolution of these defects and foreign particles changes the evolution of phase transformation and vice versa.

Therefore, it is necessary to develop a realistic multiscale computational framework which can take into account the actual microstructural data from experiments and predict the microstructure evolution along with damage nucleation and propagation in such materials during sheet metal forming process.

This PhD work will be aimed at developing a multiscale computational framework to account for the effect of damage nucleation and evolution on phase transformation and transformation induced plasticity and vice versa during sheet metal forming processes.

The successful candidate should have (or expect to achieve) a minimum of a UK Honours degree at 2.1 or above (or equivalent) in Mechanical, Manufacturing Engineering or Material Science.

Essential Background: Knowledge of CAD and FE based modelling.

Knowledge of: Forming processes, Material Characterisation, Computational Mechanics, Crystal Plasticity .

APPLICATION PROCEDURE:

Formal applications can be completed online: http://www.abdn.ac.uk/postgraduate/apply. You should apply for Degree of Doctor of Philosophy in Engineering, to ensure that your application is passed to the correct person for processing.

NOTE CLEARLY THE NAME OF THE SUPERVISOR AND EXACT PROJECT TITLE YOU WISH TO BE CONSIDERED FOR ON THE APPLICATION FORM.

Informal inquiries can be made to Dr A Siddiq ( ) with a copy of your curriculum vitae and cover letter. All general enquiries should be directed to the Postgraduate Research School ().

Funding Notes

There is no funding attached to this project. It is for self-funded students only.

References

[1] A. Siddiq, T. El Sayed, Ultrasonics, 52, 521-529, 2012. (In the list of Elsevier top 25 hottest articles)
[2]A. Siddiq, T. El Sayed, Computational Materials Science, 51, 241-251, 2012.
[3] A. Siddiq, R. Arciniega, T. El Sayed, 49, 185-195, 2012.
[4] A. Siddiq, E. Ghassemieh, Mechanics of Materials, 40, 982-1000, 2008.

How good is research at Aberdeen University in General Engineering?

FTE Category A staff submitted: 38.60

Research output data provided by the Research Excellence Framework (REF)

Click here to see the results for all UK universities

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