Evaluation of a Metallic Repair on a Rod-Stiffened Composite Panel
| Autor: | Adam Przekop, Dawn C. Jegley |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Journal of Aircraft. 51:792-804 |
| ISSN: | 1533-3868 0021-8669 |
| Popis: | A design and analysis of a repair concept applicable to a stiffened composite panel based on the pultruded rod stitched efficient unitized structure was recently completed. The damage scenario considered was a midbay-to-midbay saw-cut with a severed stiffener, flange, and skin. Advanced modeling techniques such as mesh-independent definition of compliant fasteners and elastic-plastic material properties for metal parts were used in the finite-element analysis supporting the design effort. A bolted metallic repair was selected so that it could be easily applied in the operational environment. The present work describes results obtained from a tension panel test conducted to validate both the repair concept and finite-element analysis techniques used in the design effort. The test proved that the proposed repair concept is capable of sustaining load levels that are higher than those resulting from the current working stress allowables. This conclusion enables upward revision of the stress allowables that ha... |
| Databáze: | OpenAIRE |
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