The Effects of Blast on a Combat System
A Cougar HE MRAP undergoing underbody blast testing (Source: U.S. Department of Defense).

POSTED:  April 1, 2021

BY: James O. Pilcher II

Modeling the response of ground vehicles and its occupants against underbody, buried blasts has been a continued challenge that is often tackled through utilizing complex computation simulations. However, approaching the scenario from first principles of physics
and mathematics yields valuable insight and simple fast-running models. This report covers the basics of blast wave propagation and its interactions, specifically to ground vehicles. Additionally, it goes on to describe how to calculate global loads on the vehicle, local and
structural responses in the vehicle, responses to internal occupants, and a brief discussion into experimental verifications of the calculations.

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