H bcc Sim_LAMMPS_ReaxFF_ChenowethVanDuinPersson_2008_CHOV__SM_429148913211_001 3.385607898235321 Optimization terminated successfully. Current function value: -0.022271 Iterations: 71 Function evaluations: 185 C11 = 0.468409 +/- 0.007336 GPa C12 = 0.486094 +/- 0.005187 GPa C44 = 0.486087 +/- 0.001834 GPa B = 0.480199 +/- 0.004235 GPa