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Ssme main combustion chamber life prediction
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cook, R. T. Newell, J. F. Fryk, E. E. |
| Copyright Year | 1983 |
| Description | 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. |
| File Size | 18464355 |
| Page Count | 302 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830027830 |
| Archival Resource Key | ark:/13960/t5z65c36m |
| Language | English |
| Publisher Date | 1983-05-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Propulsion And Power Service Life Fatigue Life Creep Properties Space Shuttle Main Engine Cyclic Loads Combustion Chambers Heat Flux Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
