High explosive simulation using arbitrary Lagrangian-Eulerian formulation

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Authors
  1. Bouamoul, A.
  2. Nguyen-Dang, T.V.
Corporate Authors
Defence R&D Canada - Valcartier, Valcartier QUE (CAN)
Abstract
A number of studies are underway at DRDC Valcartier looking at damage inflicted by improvised explosive devices (IEDs) in order to design retrofits to protect military vehicles and their occupants. Throughout these studies, numerical tools were developed to allow better modelling of blast wave interaction with vehicles. In this study, an Arbitrary Lagrangian Eulerian formulation was used to treat shock wave propagation in the air. The numerical model was first explored by comparing the numerical results (pressure and impulse) with experimental data found in the literature and second with numerical solutions based on the conventional weapons calculation software (CONWEP). Various parametric studies were also conducted in order to correlate numerical results more closely to the experimental data and also to assess for model independence upon mesh characteristics. The developed numerical model will be used to conduct a vulnerability study on a light armoured vehicle.

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Report Number
DRDC-VALCARTIER-TM-2008-254 — Technical Memorandum
Date of publication
01 Oct 2008
Number of Pages
30
DSTKIM No
CA031623
CANDIS No
530544
Format(s):
Hardcopy;CD ROM

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