Prediction of blast wave effects on a developed site

The guidelines for protecting against and mitigating explosion hazards require knowledge and either the experimental or theoretical evaluation of blast wave parameters. To this end, this article proposes a numerical method for simulating blast wave propagation in complex geometries. This method perm...

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Veröffentlicht in:International journal of impact engineering 2010-04, Vol.37 (4), p.385-396
Hauptverfasser: Benselama, Adel M., William-Louis, Mame J.-P., Monnoyer, François
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container_issue 4
container_start_page 385
container_title International journal of impact engineering
container_volume 37
creator Benselama, Adel M.
William-Louis, Mame J.-P.
Monnoyer, François
description The guidelines for protecting against and mitigating explosion hazards require knowledge and either the experimental or theoretical evaluation of blast wave parameters. To this end, this article proposes a numerical method for simulating blast wave propagation in complex geometries. This method permits an on-the-ground TNT-like explosion and the subsequent blast wave to be simulated, with the possibility of modifying the ground topology by adding a number of obstacles. The numerical model is explored from both a qualitative and quantitative point of view by comparing it to experimental data, with a correct determination of the wave amplitude and phase signature at different key-positions. The pressure and Mach number distributions deduced from simulations in complex congested areas highlight various fluid–solid interactions, such as regular reflections and diffractions. The iso-damage diagrams of different obstacle layouts are also presented and discussed.
doi_str_mv 10.1016/j.ijimpeng.2009.08.003
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subjects Blast loading
Cartesian mesh
Exact sciences and technology
Finite volume method
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
Iso-damage diagram
Physics
Semi-confined environment
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
title Prediction of blast wave effects on a developed site
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