Modeling and analysis of a 66 mm shaped charge
Year: 2025
Type: article
Abstract: Shaped charges have been pivotal in military and industrial applications for over a century for their ability to penetrate hard targets with remarkable efficiency. A generic 66 mm shaped charge device is widely used as a screening tool to evaluate the performance of new explosive formulations such as high energy and combined effects explosives. This paper presents a comprehensive study on the modeling and analysis of the 66 mm shaped charge experiment, focusing on the critical stages of explosive detonation, jet formation, jet elongation and particulation, as well as target penetration as a function of standoff. A multi-faceted approach is adopted, combining computer simulations, analytic modeling, and experimental data to provide a thorough description of the relevant mechanics. High-fidelity numerical simulations were performed using the Los Alamos National Laboratory (LANL) Eulerian hydrodynamic code PAGOSA. These calculations were used to elucidate the factors influencing jet formation including material strength, equation of state, geometry, and detonation models. Analytic modeling of the jet breakup and penetration mechanics were also used to predict the effects of jet characteristics and standoff on target penetration. The experimental methodology and data reduction procedures are briefly outlined, and modeling predictions are compared to experimental data.
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,170
OpenAlex ID: W4411047509