Numerical simulation and optimization design of the landmine blast protection package

Abstract

The finite element model is established based on the bench test of the landmine blast protection package. The effect of the air gap between the landmine blast protection package and the base plate as well as the stiffness of the package on the deformation of the base plate are investigated. Aluminum sandwich landmine blast protection packages are designed and the effects on the deformation suppression of the base plate are studied using the finite element model. The results show that the air gap is not conducive to the deformation suppression of the base plate. Increasing the stiffness of the package is of benefit to the deformation suppression of the base plate, however, it is necessary to consider the influence of the corresponding increase in thickness of the package on the possible increase in the base plate deformation. The scheme, composed of one piece of 2024-T3 aluminum plate and two pieces of 7mm armored steel, is the best solution among the six aluminum sandwich schemes.