Table 1 Elastic and gradient-elastic constants computed from a second nearest-neighbor modified embedded-atom-method (2NN MEAM) interatomic potential for different cubic crystals (see Lazar et al. (2022))
From: Non-singular straight dislocations in anisotropic crystals
Al (fcc) | Cu (fcc) | Fe (bcc) | W (bcc) | |
|---|---|---|---|---|
\({C}_{11}\) [eV/Å\({}^3\)] | 0.71366 | 1.09941 | 1.51659 | 3.32405 |
\({C}_{12}\) [eV/Å\({}^3\)] | 0.38649 | 0.77973 | 0.86160 | 1.28028 |
\({C}_{44}\) [eV/Å\({}^3\)] | 0.19704 | 0.51043 | 0.76096 | 1.01812 |
\({a}_{1}\) [eV/Å] | -0.02287 | -0.08509 | 0.72859 | 1.43755 |
\({a}_{2}\) [eV/Å] | 0.35854 | 0.23748 | 0.45980 | 0.87793 |
\({a}_{3}\) [eV/Å] | -0.24815 | -0.03655 | 0.59810 | 0.19097 |
\({a}_{4}\) [eV/Å] | 0.16786 | 0.03742 | 0.41599 | 0.85853 |
\({a}_{5}\) [eV/Å] | 0.30012 | 0.07479 | 0.76600 | 1.23279 |
\({a}_{6}\) [eV/Å] | 0.08229 | 0.23401 | -0.58892 | -0.67605 |
\({a}_{7}\) [eV/Å] | -0.13198 | 0.17426 | -1.09107 | -1.89998 |
\({a}_{8}\) [eV/Å] | -0.21058 | 0.18906 | -1.08476 | -2.30919 |
\({a}_{9}\) [eV/Å] | -0.54849 | -0.02327 | -1.32474 | -3.33133 |
\({a}_{10}\) [eV/Å] | 0.41893 | 0.32059 | -0.73389 | -0.41688 |
\({a}_{11}\) [eV/Å] | -0.19492 | -2.86388 | 8.52704 | 14.79794 |