Loading...
Please wait, while we are loading the content...
Similar Documents
Application of fracture mechanics and half-cycle method to the prediction of fatigue life of b-52 aircraft pylon components
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Carter, A. L. Ficke, J. M. Totton, W. W. Ko, W. L. |
| Copyright Year | 1989 |
| Description | Stress intensity levels at various parts of the NASA B-52 carrier aircraft pylon were examined for the case when the pylon store was the space shuttle solid rocket booster drop test vehicle. Eight critical stress points were selected for the pylon fatigue analysis. Using fracture mechanics and the half-cycle theory (directly or indirectly) for the calculations of fatigue-crack growth ,the remaining fatigue life (number of flights left) was estimated for each critical part. It was found that the two rear hooks had relatively short fatigue life and that the front hook had the shortest fatigue life of all the parts analyzed. The rest of the pylon parts were found to be noncritical because of their extremely long fatigue life associated with the low operational stress levels. |
| File Size | 3262853 |
| Page Count | 79 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19900004504 |
| Archival Resource Key | ark:/13960/t93828870 |
| Language | English |
| Publisher Date | 1989-09-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Fatigue Life Stress Analysis Fracture Mechanics Stress Intensity Factors Structural Failure Applications Programs Computers Hooks Pylons B-52 Aircraft Crack Propagation Load Tests 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 |
