Si bcc SW_StillingerWeber_1985_Si__MO_405512056662_006 3.2448074072599407 Warning: Maximum number of iterations has been exceeded. C11 = 893.690096 +/- 0.007336 GPa C12 = 671.078740 +/- 0.005187 GPa C44 = 70.360216 +/- 0.001834 GPa B = 745.282526 +/- 0.004235 GPa