MECHANICAL PROPERTIES OF MICRO-CONCRETE UNDER DYNAMIC LOADING
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Published:2005
R Boutemeur, J R Klepaczko, 2005. "MECHANICAL PROPERTIES OF MICRO-CONCRETE UNDER DYNAMIC LOADING", Concrete for Transportation Infrastructure: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 5–7 July 2005, Ravindra K. Dhir, Michael J. McCarthy, Sinan Caliskan
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When predimensioning or calculating the strength of reinforced concrete structures under dynamic loading, engineers have to face, specially during the phase before the project, the problems of estimation of the dynamic strength and other properties of the material composing the studied structure. To better appreciate these dynamics factors we must evaluate the effect of the stress or strain rate on these characteristics. The present study has been conducted to help to better understand the dynamic behaviour in compression of micro concrete. This behaviour has been analysed through the evolution of the mechanical characteristics over a high range of strain rate. The Hopkinson bars dispositive, based on the wave propagation theory in material, has been adopted for the conduction of the dynamic tests on the studied material. The analyses of the obtained results show that the material mechanical properties are affected by the strain rate.
INTRODUCTION
METHODOLOGY
RESULTS AND DISCUSSIONS
CONCLUSIONS
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