Shock waves interaction with a single inclusion buried in soil

The paper presents a study aimed at understanding the blast pressure action on an inclusion embedded in soil due to a nearby underground explosion. The soil is modeled as an elastic plastic material with irreversible bulk and deviatoric strains for which the modified Godunov method has been applied. Two common geometrical inclusions are investigated (circular and rectangular) and the pressure distribution along their circumferences has been studied for various standoff distances from the initial explosive’s cavity center. When the standoff distance is relatively small, the envelope of the pressure distribution shows that the maximum dynamic pressure is developed at some distance away from the axis of symmetry, otherwise asymmetrical pressure distribution is observed.