Constitutive Models for Concrete Penetration Analysis
Publication: Journal of Engineering Mechanics
Volume 122, Issue 3
Abstract
Three-dimensional axisymmetric calculations of penetration of concrete targets have been conducted with the CALE (Arbitrary Lagrangian Eulerian) code. All the constitutive models studied accounted for the compressibility of concrete and employed either solid or porous equation of state models; the influence of these models on the penetration calculations is studied and presented. The size of the plastic zone in front of the penetrator is estimated from the calculations for both compressibility models and is compared with the available experimental data. Comparison between the calculated values of the extent of this zone and the experimental data indicates that the porous equation of state model is more realistic in representing the elastic-plastic deformation in concrete. Effects of the initial porosity of concrete on penetration calculations are also studied and discussed. The application of constant yield-strength and pressure-dependent yield-strength models for the concrete penetration analysis is studied, and the results of the calculations are presented and discussed. Crater profiles calculated with the pressure-dependent yield model showed good agreement with the available experimental penetration depths and the profiles of the tunnel portion of the crater.
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Information
Published In
Journal of Engineering Mechanics
Volume 122 • Issue 3 • March 1996
Pages: 230 - 238
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Mar 1, 1996
Published in print: Mar 1996
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