PhD synopsis: High-resolution X-ray imaging of subsurface dynamics during dynamic loading

Supervisor: Dr. Daniel Eakins

Michael is a first year PhD student within the ISP supported by the EPSRC and AWE. His research is focussed on developing and applying X-ray based imaging techniques to study sub-surface deformation in shock-compressed materials. 

For many years, the existence and evolution of sub-surface processes responsible for the bulk material behaviour of materials during dynamic loading has often been inferred from surface-based measurements during compression or the microstructural characterisation of recovered material. Accordingly, the extreme conditions community is heavily reliant upon numerical models for its understanding of early and intermediate stage damage processes such as heterogeneous densification, crack propagation, pore collapse, and ejecta formation. 

Michael's research intends to make novel observations of sub-surface material dynamics using the high-resolution capabilities of modern X-ray sources, and use this data to validate existing materials models, thereby assisting in the development of next generation, better-performing materials. 

Publications and Conference Presentations:

Nanoindentation of explosive polymer composites to simulate deformation and failure.
   Materials Science and Technology, Volume 28, Number 9 - 10 (2012).

 - X-ray studies of the mesoscale during dynamic loading
   (Poster): Christmas Meeting of the High-Power Laser Community (December 16 - 18, 2013, Abingdon, UK).

 - In-situ dynamic imaging at the Diamond Light Source.
   (Poster): PETER (April 7 - 9, 2014, London, UK).

 - Dynamic X-ray imaging of transient physical processes
   (Poster): AWE/UK University Interactions in Engineering and Manufacturing Conference  (July 22-23, 2014, Imperial College London, UK).