Stress Analysis of B-52B and B-52H Air-Launching Systems Failure-Critical Structural Components
Ko, William L. (2005) Stress Analysis of B-52B and B-52H Air-Launching Systems Failure-Critical Structural Components. Technical Report NASA/TP-2005-212862, Research Engineering, NASA Dryden Flight Research Center.
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Abstract
The operational life analysis of any airborne failure-critical structural component requires the stress-load equation, which relates the applied load to the maximum tangential tensile stress at the critical stress point. The failure-critical structural components identified are the B-52B–Pegasus® pylon adapter shackles, B-52B–Pegasus® pylon hooks, B-52H airplane pylon hooks, B-52H airplane front fittings, B-52H airplane rear pylon fitting, and the B-52H airplane pylon lower sway brace. Finite-element stress analysis was performed on the said structural components, and the critical stress point was located and the stress-load equation was established for each failure-critical structural component. The ultimate load, yield load, and proof load needed for operational life analysis were established for each failure-critical structural component.
| EPrint Type: | NASA Technical Publication |
|---|---|
| Keywords: | B-52B/H pylons, Failure-critical components, Proof loads, Stress concentrations, Stress/load equations |
| Subjects: | Aircraft/Project: B-52 Aircraft/Project: Pegasus (31 - 39) Engineering: (39) Structural Mechanics |
| ID Code: | 440 |
| Deposited On: | 28 April 2005 |
| Additional Information: | 40 pages. Ko, NASA Dryden Flight Research Center. |
