| タイトル | SSME main combustion chamber life prediction |
| 本文（外部サイト） | http://hdl.handle.net/2060/19830027830 |
| 著者（英） | Newell, J. F.; Cook, R. T.; Fryk, E. E. |
| 著者所属（英） | Rockwell International Corp. |
| 発行日 | 1983-05-01 |
| 言語 | eng |
| 内容記述 | Typically, low cycle fatigue life is a function of the cyclic strain range, the material properties, and the operating temperature. The reusable life is normally defined by the number of strain cycles that can be accrued before severe material degradation occurs. Reusable life is normally signified by the initiation or propagation of surface cracks. Hot-fire testing of channel wall combustors has shown significant mid-channel wall thinning or deformation during accrued cyclic testing. This phenomenon is termed cyclic-creep and appears to be significantly accelerated at elevated surface temperatures. This failure mode was analytically modelled. The cyclic life of the baseline SSME-MCC based on measured calorimeter heat transfer data, and the life sensitivity of local hot spots caused by injector effects were determined. Four life enhanced designs were assessed. |
| NASA分類 | SPACECRAFT PROPULSION AND POWER |
| レポートNO | 83N36101
RI/RD83-150
NASA-CR-168215
NAS 1.26:168215 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/161344 |
