SHOCK INITIATION EXPERIMENTS ON THE HMX BASED EXPLOSIVE LX-10 WITH ASSOCIATED IGNITION AND GROWTH MODELING

Abstract

Shock initiation experiments on the HMX based explosive LX‐10 (95% HMX, 5% Viton by weight) were performed to obtain in‐situ pressure gauge data, run‐distance‐to‐detonation thresholds, and Ignition and Growth modeling parameters. A 101 mm diameter propellant driven gas gun was utilized to initiate the explosive samples with manganin piezoresistive pressure gauge packages placed between sample slices. The run‐distance‐to‐detonation points on the Pop‐plot for these experiments showed agreement with previous published data and extended the range to lower pressures. The Ignition and Growth modeling parameters showed good agreement to the data over the pressure range tested. This parameter set will provide additional information to ensure accurate code predictions for safety scenarios involving the HMX based explosive LX‐10.