Damage caused by the Oklahoma City bomb, 1994

Retrofitting for reinforcement - reinforced concrete structures

Making buildings and structures safer in the event of a terrorist attack is key to national security. Scientists from the University of Bath, UK, explore how to predict the behaviour of reinforced concrete columns that are strengthened with fibre-reinforced polymers.
modern office blocks mishmoshimoshi. Image licensed under CC BY 2.0 page on Creative Commons (http://creativecommons.org/licenses/by/2.0/)

Standing firm - ultra-high performance concrete

Ultra-high performance concrete improves structural integrity under extreme loads. Dr Christoph Mayrhofer and Oliver Millon from the Fraunhofer-Institute for High-Speed Dynamics, Ernst-Mach-Institut, Freiburg, Germany, report.
mannequin wearing combat helmet GS MkVI

Last line of defence - protective combat clothing

Modern personal protective combat clothing has evolved through impact simulation, and improved material strength and behaviour. Professor Ian Horsfall and Dr Debra Carr at the Impact and Armour Group at Cranfield University outline the developments and challenges.