Uncertainty quantification for high explosive reactant and product equations of state

Journal Article · 14 August 2023 · Journal of Applied Physics

DOI: https://doi.org/10.1063/5.0157842 · OSTI ID:2217507

Lindquist, Beth A.  ^[1]; Jadrich, Ryan B.  ^[1]; Heras Rivera, Juampablo E.  ^[2]; Rondini, Lucia I.  ^[3]

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1. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
2. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); University of New Mexico, Albuquerque, NM (United States)
3. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Columbia University, New York City, NY (United States)

Equations of state (EOSs) are typically represented as physics-informed models with tunable parameters that are adjusted to replicate calibration data as closely as possible. Uncertainty quantification (UQ) allows for the development of an ensemble of EOS parameters that are consistent with the calibration data instead of a single EOS. In this work, we perform UQ for the reactant and product EOSs for a variety of high explosives (HEs). In doing so, we demonstrate a strategy for dealing with heterogeneous (both experimental and calculated) data. We also use a statistical distance metric to quantify the differences between the various HEs using the UQ results.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Grant/Contract Number: 89233218CNA000001
• OSTI ID: 2217507
• Report Number(s): LA-UR--23-22754
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 7 Vol. 134; ISSN 0021-8979
• Publisher: American Institute of Physics (AIP)Copyright Statement
• Country of Publication: United States
• Language: English