Numerical modelling study of a modified sandbag system for ballistic protection

Modern field fortification systems are very large and cause a logistical burden during setup, thus setting the requirement for their modification. A simulation study was conducted to correlation between compaction of sand energy absorbed by it when impacted solid steel projectile at 850 m/s. Furthermore, sandbag modified addition plates in system observe change penetration absorption behaviour sand. The factors considered this were plate thickness (15 mm, 25 mm), material (aluminium, concrete, plexiglass, polycarbonate, steel) location (226 236 256 mm from point impact). It observed that layer compressed is formed around projectile, aiding dissipation process impact. Upon plate, (plate sand) maximum placed closest without plate. also noted enhanced characteristics compared conventional sandbags because increased From study, plexiglass polycarbonate had deformation. least minimal Concrete Aluminium comparable areal density, lowest deformation, making them preferred choice sandbag. numerical studies verified using gas gun with show improves