W bcc Morse_Shifted_GirifalcoWeizer_1959HighCutoff_W__MO_646516726498_002 3.15357652307 Optimization terminated successfully. Current function value: -17.647617 Iterations: 71 Function evaluations: 186 C11 = 341.116880 +/- 0.007336 GPa C12 = 329.909859 +/- 0.005187 GPa C44 = 330.789814 +/- 0.001834 GPa B = 333.645533 +/- 0.004235 GPa