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Prediction of perforation into concrete accounting for saturation ratio influence at high confinement

J Baroth 1 M Briffaut 1 D Vu 1 Y Malecot 1 L. Daudeville 1
1 RV - Risques, Vulnérabilité des structures et comportement mécanique des matériaux
3SR - Laboratoire sols, solides, structures - risques [Grenoble]
Abstract : This paper provides both an analytical and a finite element model aiming at better predicting possible perforation of reinforced concrete slabs submitted to impacts. Both models account for free water saturation ratio and high triaxial stress induced into concrete by the impact. Finite element simulations are performed with Abaqus explicit code using a revised constitutive model for concrete; this coupled damage plasticity model (PRM) accounts for strain rate effects and the influence of saturation ratio on the triaxial behavior. Complementary original analytical predictions of ballistic limit and residual velocities are provided for both hard and soft impacts. These predictions depend on a recent deviatoric stress-based formulation of compressive strength of concrete. Numerical and analytical results are consistent with bending and punching experimental tests.
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https://hal.univ-grenoble-alpes.fr/hal-03272104
Contributeur : Laurent Daudeville <>
Soumis le : lundi 28 juin 2021 - 10:27:02
Dernière modification le : vendredi 2 juillet 2021 - 03:39:10

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J Baroth, M Briffaut, D Vu, Y Malecot, L. Daudeville. Prediction of perforation into concrete accounting for saturation ratio influence at high confinement. International Journal of Impact Engineering, Elsevier, 2021, 156, pp.Article 103923. ⟨10.1016/j.ijimpeng.2021.103923⟩. ⟨hal-03272104⟩

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