*EOS COMPACTION

Data line to define the plastic compaction behavior

First (and only) line

1. Reference sound speed in the porous material, $c_e$. (Units of LT⁻¹.)

2. Value of the porosity of the unloaded (virgin) material, $n_0$ . (Dimensionless.)

3. Pressure required to initialize plastic behavior, $p_e$. (Units of FL⁻².)

4. Compaction pressure at which all pores are crushed, $p_S$. (Units of FL⁻².)