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DOE OSTI · 3399522

AWSD Reactive Burn Model for the HMX‐Based High Explosive LX‐04

Craven, Galen Thomas [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000151172345)·Finkelstein, Joshua David [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000300737371)·Velizhanin, Kirill A. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000306451112)·Andrews, Stephen Arthur [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000349973906)·Leiding, Jeffery Allen [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000325125291)·Aslam, Tariq Dennis [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000242630401)·Price, Matthew Anthony [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000348918841)·Ticknor, Christopher [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000199724524)
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Abstract

An Arrhenius–Wescott–Stewart–Davis (AWSD) reactive burn model is applied to describe shock initiation and detonation properties of the HMX-based high explosive LX-04. The parameters in the model are calibrated to data from multiple sources. The thermodynamic equations of state used in the model are calibrated to a combination of thermochemical calculations for HMX and LX-04 as well as experimentally-measured cylinder expansion results for LX-04. The kinetic parameters are calibrated to velocity data from gas gun experiments performed using EDC-32—a high explosive with the same chemical composition as LX-04 but different structural properties, and scaled rate stick data for PBX 9012. The AWSD model is shown to accurately describe the shock initiation and propagation of LX-04. Very good agreement is observed between the available experimental data and the AWSD model output. The presented results constitute an accurate LX-04 reactive burn model for use in engineering-scale models and simulations.

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Craven, Galen Thomas [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000151172345), Finkelstein, Joshua David [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000300737371), Velizhanin, Kirill A. [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000306451112), Andrews, Stephen Arthur [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000349973906), Leiding, Jeffery Allen [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000325125291), Aslam, Tariq Dennis [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000242630401), Price, Matthew Anthony [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000348918841), Ticknor, Christopher [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)] (ORCID:0000000199724524). 2026-07-20. AWSD Reactive Burn Model for the HMX‐Based High Explosive LX‐04. https://doi.org/10.1002/prep.70235

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