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Modélisation numérique des réservoirs soumis aux explosions et aux impacts

Abstract : The occurrence of a chain reaction from blast on atmospheric storage tanks in oil and chemical facilities is difficult to predict. Reliable tools to predict atmospheric oil tank blast resistance have been developed during the VULCAIN research project (2008-2012). Since then, some additional works were engaged involving advanced numerical eulerian and lagrangian models. Eulerian models of blast wave propagation show good agreement with the experimental data from VULCAIN but the results are limited by the processing capacity. Modeling of a real-scaled blast over an atmospheric tank seems still difficult without very high processing calculators. As a solution, analytical evaluation of far-field pressure waves coupled with an eulerian model in the proximity of the structure can provide very interesting results for reflected overpressure. Lagrangian finite elements models of tanks subjected to the effects of overpressure provide good agreements in terms of displacement and plastic deformation with respect of specific criteria for loading, material and meshing. Further works will introduce fracture analysis and eulerian-lagrangian coupled simulations.
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https://hal-ineris.archives-ouvertes.fr/ineris-01869468
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  • HAL Id : ineris-01869468, version 1

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Gaëtan Prod’homme, Mathieu Reimeringer. Modélisation numérique des réservoirs soumis aux explosions et aux impacts. Rapport Scientifique INERIS, 2013, 2012-2013, pp.64-65. ⟨ineris-01869468⟩

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