An empirical model for mine-blast loading / Amal Bouamoul ... [et. al.].: D69-43/2014E-PDF

"The anti-vehicular landmine threat has increased greatly since 2005. It has now become one of the important causes of vehicle losses in combat operations, and a major threat to vehicle occupants in many countries. Experimental and numerical studies of buried charge effects on structure and the measurement of the loading produced by landmines become important topics to study. These types of researches are done to support the development of improved vehicle protection to resist blast from landmines and Improvised Explosive Devices (IED's). Since it is a very challenging task to model explosive detonation, shock wave formation and propagation as well as interaction with structures from first principles, a phenomenological approach was investigated. Many non-impulsive pressure models were investigated to model the damage on a plate from a blast landmine. The assumption that the loading generated by the blast is purely impulse is critically investigated and rejected. A new non-impulsive time-distribution pressure model is then proposed. The outputs of the new pressure model were validated using experimental data from 6 kg TNT experimental tests on plate flat"--Abstract.

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