Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Numerical simulation of reactive armor interfering kinetic energy projectile in complex natural environment
| DOI: | 10.11809/bqzbgcxb2024.11.014 |
| Keywords: | explosive reactive armor; kinetic energy projectile; residual depth of penetration; numerical simulation |
| Abstract: | In order to study the effects of projectile characteristic factors, sand and salt spray corrosion on the interference of Explosive Reactive Armor (ERA) projectile penetration, Finite element analysis software ANSYS/LS DYNA was used to establish the numerical model of ball head and flat head penetrators penetrating ERA at different impact speeds and normal angles.Meanwhile, the effect of sand and salt spray corrosion environment on ERA was equivalent, and the after effect target was set.The Residual Depth of Penetration (RDOP) of kinetic energy projectile on the target under different working conditions is analyzed.The results show that the RDOP of ball piercing bullets and flat piercing bullets against main armor is reduced by 13.13% and 5.29% on average, respectively.The RDOP of kinetic energy projectile against main armor is positively correlated with projectile impact velocity and negatively correlated with normal Angle.Sand and dust directly affect the density of ERA interlayer charge, and RDOP and interlayer charge density are quadratic functions.When the degree of fly plate corrosion is 25%, the ability of ERA to interfere with the penetration of kinetic energy projectile is enhanced.The protection ability of ERA is still improved after the upper and lower parts of the flying board are subjected to 50% corrosion.When the degree of fly plate corrosion is 75%, ERA can no longer function normally. |
| Published: | 2024-11-30 |