Mechanical Response Change in Fine Grain Concrete Under High Strain and Stress Rates

Francesco Dell'Isola (1) , Anatoly M. Bragov (1) , Leonid A. Igumnov (1) , Bilen Emek Abali (2) , Andrey K. Lomunov (1) , Dmitry A. Lamzin (1) , Alexander Yu. Konstantinov (1)

1 Research Institute for Mechanics, National Research Lobachevsky State University of Nizhny Novgorod Russian Federation
2 TU - Technical University of Berlin / Technische Universität Berlin

Experimental results on assessing the effects of strain and stress rates on the behavior of fine-grain concretes are presented. Specimens of fine-grain and fiberreinforced concretes were dynamically tested using the Kolsky method and its modification, the “Brazilian test”. As a result of the experiments, values of the Dynamic Increase Factor (DIF) were determined for both the materials studied. Their curves as a function of strain and stress rates were constructed. The experimental data is compared with the theoretically obtained values of DIF as a function of strain rate available in the literature

Domaines: Mécanique [physics]

Francesco Dell'Isola, Anatoly M. Bragov, Leonid A. Igumnov, Bilen Emek Abali, Andrey K. Lomunov, et al.. Mechanical Response Change in Fine Grain Concrete Under High Strain and Stress Rates. New Achievements in Continuum Mechanics and Thermodynamics, pp.71-80, 2019, Advanced Structured Materials book series (STRUCTMAT, volume 108), ⟨10.1007/978-3-030-13307-8_5⟩. ⟨hal-02268859⟩