Isobars of the equilibrium specific volume as a function of temperature for a generic amorphous polymer in the vicinity of the glass transition.
Equilibrium specific heat at constant pressure as a function of temperature for a generic amorphous polymer in the vicinity of the glass transition.
PMMA isobars of the equilibrium Gibbs free energy density from Eq. (50).
PMMA equilibrium . Selected points are from Ref. 35.
PMMA equilibrium . The ambient pressure curve is from Ref. 34.
Equilibrium isothermal bulk modulus for PMMA from the Eq. (55). Note that the ambient pressure, room temperature value is about 3.1 GPa.
PMMA logarithm of the shear shift function, .
Compressive stress-strain behavior for PMMA at a fixed strain rate of 0.01 s−1. Points are selected data from Ref. 16.
Compressive stress-strain behavior for PMMA at 25 °C. Points are selected data from Ref. 16.
Shock Hugoniot from Barker and Hollenbach42 and that calculated from the equilibrium EOS for PMMA.
Isobar of the equilibrium and non-equilibrium specific volume as a function of temperature for a generic amorphous polymer in the vicinity of the glass transition.
Bulk storage modulus for PMMA at 20 °C for M = 6 and 12 generalized Maxwell models for the volumetric response. Points are selected data from Sane and Knauss.9
PMMA velocity profiles of Barker and Hollenbach42 (points) and from the model (lines). Rounding in the profiles help determine the values used for , , and in Table IV. Impact velocities are listed.
Model PMMA velocity profiles for two impact velocities. Positions, measured from the impact surface, are given for the calculated profiles within the PMMA target.
Model stress profiles for an impact velocity of 308.5 m/s. Locations of the profiles in the PMMA target are approximately evenly spaced between 0.4 and 13 mm.
Hugoniot for PMMA measured by Barker and Hollenbach42 and Schuler43 and calculated from the present model.
Equilibrium EOS parameters for PMMA from fitting experimental and data.
Shear relaxation times and strengths for PMMA.
PMMA flow model parameters. Unless specified, parameters are dimensionless.
Bulk relaxation times and strengths for PMMA for a M = 6 and 12 generalized Maxwell model for the volumetric response.
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