Numerical Simulation of Small-Scale Explosion in Dry Sand

Abstract:

Numerical simulation of small-scale explosion in dry sand using two sand material models including the Sand model and the LA model were carried out in the present study. Three cases were considered which the depths of burial (DOB) of the explosive C4 charge were 0, 30 mm and 80 mm, respectively. The time arrival of the blast-wave front and the maximum overpressure of fixed measuring locations were studied using a two dimensional axisymmetric model in hydrocode ANSYS/AUTODYN. Furthermore, the crater diameters and the heights of detonation product cloud respect to the time were also studied by comparing with the test data. The simulation results indicate that the both sand material models were hardly predict the test data exactly which proves that the sand properties and the material model should be more carefully studied and defined.

• Periodical: Advanced Materials Research (Volume 705)
• Pages: 110-114
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.705.110
• Online since: June 2013
• Authors: Yu Qing Ding, Wen Hui Tang, Xian Wen Ran, Xin Xu
• Keywords: Dry Sand, Explosion, Numerical Simulation

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