  We perform density functional theory (DFT) calculations of five solid phases
and the liquid phase of tin. The calculations include cold curves of the five
solid phases, phonon calculations in the quasi-harmonic approximation over a
range of volumes for each solid phase, and DFT-based molecular dynamics
(DFT-MD) calculations of the liquid phase. Using the DFT results, we construct
a tabular multiphase SESAME equation of state for tin, referred to as SESAME
2162. Comparisons to experimental data are made and show a high level of
agreement in isobaric data, isothermal data, shock data, and phase boundary
measurements, including measurements of the melt curve. The 2162 EOS will be
useful for hydrodynamics simulations and has been designed with an eye toward
hydrodynamics simulations that incorporate materials strength models and allow
for modeling of the kinetics of phase transitions.
