| Year | 2020 |
| Date | 10-Apr |
| Volume | 224 |
| Issue | 4,636 |
| Page | 590 |
| Category | Materials |
| Part | |
| Title | Metal Fatigue |
| Author | Robert Walker |
| Notes | Explains what happens to a metal which is stressed repeatedly. Fatigue failure of the LNER P2 locomotive crank axle, Miner's cumulative damage rule, common causes of premature fatigue failure, extending component life, references |