Effect of ramming initial state on band engraving in smooth-bore guns

Abstract Most modern tank guns are high bore pressure smooth-bore that often use High Explosive Antiarmor (HEAA) projectile in combat. This paper focuses on the coupled smoothbore gun- HEAA system, and analyses ramming-band engraving process when a fires projectile. First, finite element mesh model of coupling dynamics large-calibre gun barrel was established, band discretized by using Smoothed Particle Hydrodynamics (SPH) method based Lagrange mesh. Then, propellant gas acting base defined ABAQUS user’s subroutine. Finally, ramming-engraving simulations were carried out for ramming residual stress strain, tilt different misalignment distances working conditions respectively. According to simulation results, effect initial states obtained. The conclusion provides some reference process.