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The European Physical Journal Special Topics

, Volume 225, Issue 2, pp 265–282 | Cite as

Analysis of concrete targets with different kinds of reinforcements subjected to blast loading

  • M. Oña
  • G. Morales-Alonso
  • F. Gálvez
  • V. Sánchez-Gálvez
  • D. Cendón
Regular Article
Part of the following topical collections:
  1. Dynamic Behaviour of Materials at High Strain Rates: Experiment, Modelling and Simulation

Abstract

In this paper we describe an experimental campaign carried out to study and analyse the behaviour of concrete slabs when subjected to blast loading. Four different types of concrete have been tested: normal strength concrete with steel rebar, normal strength concrete with steel rebar retrofitted with Kevlar coating, steel fibre reinforced concrete (SFRC) and polypropylene fibre reinforced concrete (PFRC). The major asset of the experimental setup used is that it allows to subject up to four specimens to the same blast load what, besides being cost effective, makes possible to have a measure of the experimental scatter. The results of SFRC and PFRC concretes have been analysed by using a previously developed material model for the numerical simulation of concrete elements subjected to blast. The experimental campaign and preliminary results of this numerical analysis show how the high strain rates, in spite of improving the mechanical properties of these kinds of fibre reinforced concretes, lead to an embrittlement of the material, which may be dangerous from the point of view of the structural behaviour.

Keywords

Fracture Energy High Strain Rate European Physical Journal Special Topic Concrete Slab Softening Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences and Springer 2016

Authors and Affiliations

  • M. Oña
    • 1
  • G. Morales-Alonso
    • 1
  • F. Gálvez
    • 1
  • V. Sánchez-Gálvez
    • 1
  • D. Cendón
    • 1
  1. 1.UPM, Material Science Dept.MadridSpain

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