Table 1 The reduced units and SI units of the L-J potential and EAM potential
From: A Local Region Molecular Dynamics Simulation Method for Nanoscale Sliding Contacts
Parameters | L-J potential | EAM potential | ||
|---|---|---|---|---|
Reduced units | SI units | Reduced units | SI units | |
Mass (kg) | m | 1.055 × 10−25 | m | 1.055 × 10−25 |
Length (m) | r 0 | 2.277 × 10−10 | d | 2.556 × 10−10 |
Energy (J) | \(\varepsilon\) | 6.648 × 10−20 | eV | 1.602 × 10−19 |
Time (s) | \(\sqrt {mr_{0}^{2} /\varepsilon }\) | 2.869 × 10−13 | \(\sqrt {md^{2} /eV}\) | 2.024 × 10−13 |
Force (N) | \(\varepsilon /r_{0}\) | 2.920 × 10−10 | \(eV/d\) | 6.268 × 10−10 |
Temperature (K) | \(\varepsilon /k_{\text{B}}\) | 4.815 × 103 | \(eV/k_{\text{B}}\) | 1.160 × 104 |
Stress (Pa) | \(\varepsilon \cdot r_{0}^{ - 3}\) | 5.631 × 109 | \(eV \cdot d^{ - 3}\) | 9.594 × 109 |