Modeling and Simulation of Various Calibers Safer Shaped Charges Employing an Insensitive Energetic Composition (IMX) as The Main Filler | ||
| Egyptian Journal of Chemistry | ||
| Articles in Press, Accepted Manuscript, Available Online from 06 October 2025 | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2025.403129.12029 | ||
| Authors | ||
| Ahmed Nabil Elsabagh1; ahmed elbeih2; Tamer Z.Wafy3; tamer e shenawy* 1 | ||
| 1Technical Research Centre | ||
| 2Head of Liaison Technical Center for Research and Development, Military Technical College | ||
| 3Head of Chemical Engineering Branch, Military Technical College | ||
| Abstract | ||
| This study investigates the effect of loading density on the performance of 40-mm and 80-mm diameter shaped charges equipped with trumpet-shaped liners of 1-2 mm thickness, respectively. The main charge composition based on nitrotiazolone (NTO), 2,4-dinitroanisole (DNAN), and 1,3,5-trinitro-1,3,5-triazinane (RDX) was synthesized in the laboratory and characterized using differential scanning calorimetry (DSC). Numerical simulations were conducted using Autodyn hydrocode (AD) to analyze jet characteristics and calculate penetration depth. The JWL parameters for the IMX Composition were derived using the Explo5 code and implemented into the simulation. The virtual origin (VO) and effective jet length were tracked using the back-projection method. Analytical equations were also applied to estimate jet breakup time and penetration depth. Some penetration measurements were performed using static firing against RHA targets. Increasing the density from 1.6 g/cm³ to 1.8 g/cm³ increased detonation velocity from 6900 to 8040 m/s, theoretically based on Explo5 (version 5.04). Jet velocity improved by 25 % (40 mm) and 22 % (80 mm), while penetration depth increased by 39 % (40 mm) and 36 % (80 mm) based on AD predictions. The experimental penetration testing exhibited only 5.5 % (40 mm) and 10 % (80 mm) differences compared to numerical predictions. In comparison, the maximum deviation between numerical and analytical predictions of penetration depths was only 9 % (40 mm) and 11 % (80 mm). | ||
| Keywords | ||
| Keywords: Shaped Charge; Explo5; Autodyn; Analytical calculations; Back Projection Method; Firing test | ||
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