Projectile penetration in soil multivariate probabilistic model

Abstract EN

In this paper, multiple regression analysis was performed on data gathered from the literature for determining the maximum depth of penetration of an impacting projectile of low and high velocities on earth soil.

The data were divided into two groups.

The first of which is being related to the projectile characteristics including, weight, frontal area, nose length and the impacting velocity.

The second is being related to the soil properties including the unconfined compressive strength, bulk density, plasticity index, cohesion and the angle of friction.

A total of 12 sets of equations were developed relating the penetration depth to various soil properties and projectile characteristics.

The results of the regression showed that the equations provided relatively good predictive tools.

The highest correlation ratio was found to be0.975 while the lowest was 0.847.

Most of the data fell within the 95% accuracy band.