Open AccessExperiments and computer simulations of the dynamic cavity formed by a particulated shaped-charge jet in sand
Author(s) -
S. C. Simonson,
K. Winer,
John E. Reaugh,
Ralph Breithaupt,
D.W. Baum
Publication year - 1995
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/46703
Subject(s) - shaped charge , penetration (warfare) , conical surface , mechanics , materials science , rod , copper , jet (fluid) , stub (electronics) , penetration depth , piezoelectricity , geotechnical engineering , composite material , optics , geology , structural engineering , physics , engineering , metallurgy , chemistry , medicine , alternative medicine , organic chemistry , pathology , operations research , explosive material
Experiments have been carried out to measure the dynamic cavity growth of dry sand during penetration by particulated jets from Viper 65-mm-diameter, Cu-lined conical shaped charges at 1,000-mm standoff. The sand target was instrumented with foil switches, piezoelectric pins, and pressure transducers. Flash radiography at 450-keV was used to characterize the jets before impact and to image the target hole during jet penetration. The authors have developed a dry sand equation of state based on existing Hugoniot data as input to a porous material model incorporated in the 2-D arbitrary Lagrangian-Eulerian hydrocode CALE. They have carried out sand penetration simulations in which the particulated jet is modeled as hot copper rods. By varying parameters in the sand and copper descriptions they identify those features that affect the dynamic cavity formation
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