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2005 Visitors

Martin Simmons

Tel: (44) 0150 7944845
Email : me0u6029@liv.ac.uk

Personal Details

Martin was born in Birkenhead, situated in the North-West of England and has lived in this region all of his life. He attended the University of Liverpool where he graduated with a Masters degree (MEng) in Mechanical Engineering. Martin joined the Impact Research Centre (IRC) at the University of Liverpool in 2000 undertaking a recently completed PhD study entitled ‘Safety Through Novel Dynamic Pressure Testing of Aircraft Structural Panels’. The work focused on comparing the response of stiffened panels representative of part of an aircraft structure to pulse pressure loads, generated using a novel pressure differential device. Panels with various stiffener spacings were investigated. Comparison was also made between geometrically similar panels with stiffeners fixed to the panel skin by traditional riveting methods and the relatively new technology of laser-welding. Lower bound failure pressures were determined for the panels and in general the laser-welded panels failed at lower impulses. A considerable amount of experimental data was generated and used to verify Finite Element (FE) models, which successfully modeled the principal modes of failure observed in the experiments.

Current Research

Blast performance of novel lightweight materials (UCT, Liverpool)

The University of Liverpool has developed a range of novel lightweight materials, based on arrangements of metal alloys and thermoplastic based composites. These materials, known as fibre-metal laminates (FMLs), have excellent impact and fatigue properties and have been proposed for use in blast resistant applications. Current research work at UCT and the University of Liverpool is investigating their performance under blast loading, and is sponsored by the UK Engineering and Physical Sciences Research Council, the UK Home Office and several industrial project partners. The University of Liverpool is focusing on determining tensile properties of these materials and investigating their response to uniform pressure loading whereas the work at UCT is concerned with localised blast loading.

The long term aim of this project is to develop a new blast-resistant material for use in street furniture, such as post-boxes and litterbins, as these are possible locations for concealing terrorist bombs. It comes at a time when there is a growing threat to the general public from terrorist activities. The outcome of this study could lead to a significant reduction in structural damage and personal injuries caused through targeted terrorist bomb attacks in major cities. This new generation of blast-resistant, lightweight, cost-effective fibre-metal laminates is also of value to the aerospace and transport industries, more particularly so as their properties become more widely known

Publications

Published Conference Proceedings

  • Dearden, G., Simmons M.C., Okon, P., Schleyer, G.K. and Watkins, K.G., ‘Blast and impact resistance studies of laser welded and riveted panel structures’, ICALEO 2002, 21st International Congress on Applications of Lasers & Electro-Optics, Arizona, USA, 14-17 October 2002.
  • Simmons, M.C. and Schleyer, G.K., ‘Dynamic pressure testing of aircraft structures’, Proceedings of the 4th International Conference on Thin-Walled Structures, Loughborough, UK, 22-24 June 2004.