The text you are referring to is likely the seminal report "
Below is a discussion of EOS and strength characteristics for three selected materials: Aluminum (lightweight structural), Copper (ductile metal), and Tungsten (high-density/armor). equation of state and strength properties of selected
In everyday engineering, we assume strength is constant. However, at the extreme pressures found in hypervelocity impacts or laser-fusion experiments, the EOS and strength become coupled. The text you are referring to is likely
Computational modeling to predict properties where experiments are impossible. Why It Matters Accurate EOS and strength data allow us to: Form : ( P = (\gamma - 1)\rho