Soft Projectile Impacts on Thin Reinforced Concrete Slabs: Tests, Modelling and Simulations

Abstract:

Numerical simulations of reinforced concrete structures subjected to high velocity impacts and explosions remain a difficult task today. Since ten years and more now, the CEA-Gramat has maintained a continuous research effort with the help of different French universities in order to overcome encountered difficulties in modelling the behaviour of concrete structures under severe loading. These difficulties are related to numerical aspects (convergence difficulties of the non linear stress strain relation in 3D configuration, efficiency of the numerical procedure and robustness), but also due to the ability of the material model to simulate the accurately behaviour of a very complex and heterogeneous material like concrete. A new concrete model, named PRM model, has been developed at CEA-Gramat (Pontiroli, Rouquand & Mazars, [1], [2], [3]) to predict the concrete response under a large range of dynamic loadings.

• Periodical: Applied Mechanics and Materials (Volume 82)
• Pages: 503-508
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.82.503
• Online since: July 2011
• Authors: Christophe Pontiroli, Alain Rouquand
• Keywords: Concrete Model, Experiment, Impact, Simulation

References

[1] C. Pontiroli, 1995, "Comportement au souffle de structures en béton armé, analyse expérimentale et modélisation", thèse de doctorat, Ecole Normale Supérieure de Cachan, Centre d'études de Gramat.

DOI: 10.58286/28160

[2] A. Rouquand, 2005, "Presentation d'un modele de comportement des geomateriaux, applications au calcul de structures et aux effets des armes conventionnelles", Centre d'Etudes de Gramat, rapport technique T2005-00021/CEG/NC.

[3] Mazars J., 1984. "Application de la mécanique de l'endommagement au comportement non-linéaire et à la rupture du béton de structure". Thèse d'état de l'Université Paris VI, France. [in French]

DOI: 10.1051/978-2-7598-0239-5-012

[4] Erzar B., Forquin P., Buzaud E., Pontiroli C. "Tensile strength of mortar over a wide range of strain rate", DYMAT2009, Bruxelles, Proceedings

DOI: 10.1051/dymat/2009086

[5] Hillerborg A., Modeer M., Petersson P. E., 1976, "Analysis of crack formation and growth in concrete beams of fracture mechanics and finite elements", Cement and Concrete Research, Vol. 6, pp.773-782.

DOI: 10.1016/0008-8846(76)90007-7

[6] Johnson G. R. and Cook W. H., "Fracture characteristics of three metals subjected to various strains, strain rates, Temperatures and pressures", Engineering Fracture Mechanics, vol. 21, n° 1 PP 31-48, (1985)

DOI: 10.1016/0013-7944(85)90052-9