Uniaxial Modelling of Behavior of the Concrete in Fast Dynamics: Approach to Seismic Behavior

Abdelhak Baraka, Mohammed Benali Benmansour, Yazid Abdelaziz, Fakhreddine Djeddi

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DOI: 10.4236/eng.2011.36066                

Abstract

The advantages of the computer enable us to simulate of complex structures subjected to dynamic loading. To come up to the necessity to know the real behavior of such material, we exploit these advantages basing on experimental data available in the literature. Since the response of the material depends on stress velocity, so it is essential to provide a computational code with dynamic behavior. To perform such simulations, we have elaborated a behavior law governed by loading velocity effect on concrete and their attitudes cyclic non elastic, for an approach of seismic behavior. This paper shows the processes we have followed to formulate this viscous damage law whose aim is behavior prediction for concrete under dynamic stresses. Then, the model is validated with experimental results and simulations of some available tests on Hopkinson’s bar.

Keywords

Concrete, Viscous-Damage, Strain Rate

Conflicts of Interest

The authors declare no conflicts of interest.

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