Original title: Optimization of Jones-Wilkins-Lee EOS parameters for the PG3 explosive
Authors: Prado, Angel ; Castedo, R. ; Santos, A.P. ; Chiquito, M. ; Gómez-De-Cabo, C. ; López, L.M. ; Yenes, J.I. ; Isoz, Martin
Document type: Papers
Conference/Event: International Conference Applied Mechanics 2026 /27./, České Budějovice (CZ), 20260413
Year: 2026
Language: eng
Abstract: Accurate prediction of air-blast effects requires reliable JWL EOS parameters, but traditional cylinder tests are costly and complex. This study presents a methodology to determine JWL parameters using height-ofburst experiments combined with numerical optimization. PG3 explosive detonations (0.7–1.4 kg) were simulated in a 2D axisymmetric LS-DYNA model, with experimental pressure–time histories guiding the optimization. The calibrated parameters reproduced overpressure profiles with errors below 10% and were validated using Viper::Blast simulations. This approach offers a cost-effective, flexible alternative to conventional methods, enabling rapid, reliable EOS parameter determination with minimal experimental effort.
Keywords: blast simulation; JWL-EOS; LS-DYNA; LS-OPT
Host item entry: Applied Mechanicas 2026, ISBN 978-80-261-1352-2

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: https://www.kme.zcu.cz/en/media/am2026/AM2026_proceedings.pdf
Original record: https://hdl.handle.net/11104/0380296

Permalink: http://www.nusl.cz/ntk/nusl-781031


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