Product: Abaqus/Explicit
Benefits: You can now use user subroutine VUEOS to define a hydrodynamic material model in which the material's volumetric response is determined by your own definition of the equation of state.
Description: The equation of state defines the pressure as a function of the current density, 
, and the internal energy per unit mass, 
: 
. Abaqus/Explicit solves the energy equation together with the equation of state using an iterative method. The pressure stress, 
, and the derivatives of the pressure with respect to the internal energy and to the density, 
and 
, must be provided by user subroutine VUEOS.
