An experimental test used to characterize the adiabatic expansion of detonation
products. It allows JWL EOS parameters to be determined.
It consists of a copper cylinder filled with an explosive (TNT). Detonation is initiated at the
bottom of the explosive with a planar detonation wave. It propagates along the
cylinder axis and radial expansion of the copper cylinder is measured at a given
point of external surface. Figure 1.
In order to simulate this test, models are created with the following details:
Axisymmetric mesh of a
cylinder with four node quad elements (for Lagrangian Approach)
3D mesh of a quarter-cylinder with eight node brick elements (for Eulerian
Approach)
Jones-Wilkins-Lee Equation-of-State for TNT detonation products
(/MAT/JWL)
Hydrodynamic Johnson-Cook material law for the copper cylinder
(/MAT/HYD_JCOOK)
Multi-Material, Fluid and Explosive material law
(/MAT/LAW51)
The simulation results are then compared to the experiment data.
