O fcc Sim_LAMMPS_ReaxFF_XiaoShiHao_2017_PHOC__SM_424780295507_000 2.6738886833190922 Warning: Maximum number of iterations has been exceeded. C11 = 202404.137052 +/- 0.007336 GPa C12 = 191895.194854 +/- 0.005187 GPa C44 = 12079.052054 +/- 0.001834 GPa B = 195398.175586 +/- 0.004235 GPa