Influence of Different Ground Parameters on Energy Transfer under Blast Loading

The armored vehicles/structures are highly vulnerable to blasting from buried explosives/landmines. The development of an effective protection system to armored vehicles against buried blasts depends on the energy transferred from the blast to the target. The underestimation of blast energy leads to design of a weak protection system. Underestimating the blast energy could result in an insufficient protection system; conversely, the protection system will be unnecessarily too costly or too bulky to use if blast energy is overestimated. The transferred energy to the target or energy dissipated in the ground depends upon the shear strength parameters of ground and depth of burial. These are the governing factors for studying the structural response and level of damage of the target vehicle/structure. In this study, the two-dimensional finite element method has been used to model the explosive and various ground parameters. Therefore, a comprehensive study is performed to demonstrate the influence of shear strength parameters of ground such as cohesion and friction angle on the blasting of explosives buried at different depths.