Open AccessModelling of Bulging Steel-Elastomer Armour Applied Against Long-rod Projectiles
Author(s) -
Teresa Frąś
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1855/1/012016
Subject(s) - armour , projectile , kinetic energy , materials science , elastomer , tungsten , natural rubber , structural engineering , composite material , head (geology) , mechanics , engineering , geology , physics , metallurgy , classical mechanics , layer (electronics) , geomorphology
A protection concept, so-called bulging armour, applied to mitigate effects of kinetic-energy penetrators is hereby discussed basing on an experimental and numerical study. The laminated steel-elastomer armours take advantage of the rubber interlayer that deforms rapidly under an impact causing bulging of the side steel plates. Long and slender kinetic-energy projectiles made with a tungsten alloy tend to fracture disturbed by an asymmetric contact with the deforming plates. In the performed experimental study, the laminates with the natural rubber interlayer of different thicknesses are impacted by the kinetic-energy penetrators with the initial velocity above 1500 m/s. The numerical analysis accompanies the ballistic test complementing it by a detailed insight into the defeat mechanism. The performed investigation proves a protective efficiency of the discussed passive armour and explains its physical background.