Faster Method of Simulating Military Vehicles Exposed to Fragmenting Underbody IED Threats

Babu, Venkatesh; Thyagarajan, Ravi; Ramalingam, Jaisankar

doi:10.4271/2017-01-0264

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…The timings for FEA simulation are provided in papers by Babu et al 25 and The Lawrence Livermore National Laboratory and show that the execution times of FEA simulations are many times slower than the timing of this paper’s simulation.…”

Section: Resultsmentioning

confidence: 93%

Real-time simulation of a fragmenting explosion for cylindrical warheads

Felix

Colwill

Harris

2021

Journal of Defense Modeling & Simulation

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Explosion models based on finite element analysis (FEA) can be used to simulate how a warhead fragments. However, their execution times are extensive. Active protection systems need to make very fast predictions, before a fast attacking weapon hits the target. Fast execution times are also needed in real-time simulations where the impact of many different computer models is being assessed. Hence, FEA explosion models are not appropriate for these real-time systems. As a trade-off between accuracy and execution time, this paper creates a simulation of fragments from a warhead’s explosion, using simple analytical equations. The results are verified against explosion experimental data and FEA results. The developed model then can be made available for real-time simulation and fast computation.

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