| タイトル | Ultrasonic measurement of stress in railroad wheels and in long lengths of welded rail |
| 本文（外部サイト） | http://hdl.handle.net/2060/19740023246 |
| 著者（英） | Clotfelter, W. N.; Risch, E. R. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 1974-07-01 |
| 言語 | eng |
| 内容記述 | The failure of high speed emergency braking is discussed for railroad wheels and track. It is shown that high compressive residual stresses exist in the rims of new wheels which generate excessive heat, reducing the stress levels. Thermal stresses that build up in continuous lengths of welded track are reported and nondestructive methods of measuring stresses in thick steel are presented for identification, replacement, or adjustment before hazardous failures occur. |
| NASA分類 | STRUCTURAL MECHANICS |
| レポートNO | 74N31359
NASA-TM-X-64863 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/193361 |
