Accession Number : ADA535049


Title :   Development of a Strategy for Simulating Blast-Vehicle Interactions


Corporate Author : MISSISSIPPI STATE UNIV MISSISSIPPI STATE CENTER FOR ADVANCED VEHICULAR SYSTEMS


Personal Author(s) : Thompson, D ; Luke, E ; Newman, III, J C ; Janus, J M ; Blades, E ; Tong, X ; Moore, C ; Kang, J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a535049.pdf


Report Date : Sep 2010


Pagination or Media Count : 142


Abstract : This report describes research and development activities supported by contract W56HZV-08-C-0126, which was funded under the SimBRS program, to develop a strategy to perform high-fidelity simulations of blast-vehicle interactions including complex phenomena such as detonation, coupled fluid-structure interactions, and non-linear structural response to severe, time-dependent pressure loads and debris impact. The contract leveraged ongoing development efforts for the high-fidelity flow solver Loci/CHEM to produce a fully Eulerian numerical capability to simulate blast phenomena in fluids and solids. The resulting code was christened Loci/BLAST. Included in this report are: an assessment of existing technology; a discussion of the implementation of the Jones-Wilkins-Lee equation of state and a prescribed burn function within Loci/BLAST; results from simulations of blast interactions with realistic rigid geometries; a discussion of the implementation of the models needed to simulate blast-soil interactions within Loci/BLAST and the associated validation activities; results from simulations of blast interactions with debris; and preliminary results from coupled fluid-structure interaction simulations using Loci/BLAST and LS-DYNA. The results reported here demonstrate that it is possible to perform blast simulations, including both fluids and solids, within a unified Eulerian framework. These results lay the groundwork for the new strategy that is described in the report.


Descriptors :   *BLAST , *MATHEMATICAL MODELS , *INTERACTIONS , FLUIDS , VEHICLES , STRUCTURAL RESPONSE , SOLIDS , DEBRIS , SOILS


Subject Categories : Operations Research
      Explosions
      Fluid Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE