F-111A Wing Fatigue Test Program
Abstract
An F-111A wing was fatigue tested in the full stores configuration for evaluation of the wing, wing hard points, and fixed pylons. The spectrum consisted of nine test conditions with loads applied at three wing sweep ANGLES: 25, 50, 72.5 degrees. The repeated application of these test conditions simulated 24,000 hrs of service (6 test lives). Upon completion of the six test lives, the spectrum was modified and cycling continued for an additional four test lifetimes (16,000 hrs). After completion of the 10th fatigue test lifetime, 65% limit load constant amplitude cycles were applied until failure occurred. The F-111A wing has a satisfactory fatigue life for the spectrum imposed upon it.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1976
- Accession Number
- ADA025795
Entities
People
- Robert L. Schneider
Organizations
- Flight Dynamics Laboratory