Numerical simulation of rigid projectile penetrating concrete and granite
In order to study the resistance to penetration of concrete target plate and granite target plate,numerical simulation of the process of rigid projectile penetrating HJC model concrete target plate and gran-ite target plate was carried out by ANSYS/LS-DYNA finite element analysis software,and the validity of the numerical simulation results was verified by comparing the results of numerical simulation with the ex-perimental and theoretical empirical formulas made by previous authors.The findings demonstrate that,un-der identical circumstances,the resistance of the rigid projectile in the granite target plate is greater than that of the corresponding concrete target plate,and the residual velocity after the projectile penetrates the concrete target plate is significantly higher than that after the projectile penetrates the granite target plate under the same initial penetration velocity of the rigid projectile,and the penetration depth of the concrete target plate is also significantly higher than that of the granite target plate.The analysis of the results for the rigid projectile intrusion into the two target plates shows that the granite target plate is more significant than the concrete target plate in terms of resistance to projectile intrusion,which can provide support and basis for the design of protective engineering structures.
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