Proceedings of the 29th ICDERS (2023)
Technical Program from the 2023 ICDERS: In Process Individual Extended Abstract
- "Validation of a High Explosive Detonation Product Equation of State via a Slab Geometry Test",
Eric K. Anderson, Stephen J. Voelkel, Mark Short, Carlos Chiquete and Scott I. Jackson
Proceedings of the 29th International Colloquium on the Dynamics of Explosions and Reactive Systems, Paper 070, 2023.
Paper 070 (PDF)
Abstract: Detonation in a high explosive (HE) generates high pressures due to a rapid energetic shock-driven combustion process. The resulting energy is then available to push on the surrounding confinement as the products expand. Thus, accurate detonation products equations of state (EOSs) are essential. Such EOSs are normally calibrated from data obtained in a cylinder expansion (CYLEX) test where a cylinder of HE is encased in a copper (Cu) tube. The velocity of the expanding Cu tube is measured as the HE detonates and used to calibrate a detonation product EOS. In the following, we describe a slab expansion (SLABEX) test to provide a validation of the CYLEX test-based calibration process for a detonation products EOS. The SLABEX test consists of a Cu-confined rectangular-slab of PBX 9502. Simulations of the Cu plate expansion in the SLABEX geometry are conducted using the product EOS for PBX 9502 recently calibrated in the CYLEX test geometry, and compared to experimental results.