NASA is conducting the Airframe Structural Integrity Program in support of the aging commercial transport fleet. This interdisciplinary program is being worked in cooperation with the U.S. airframe manufacturers, airline operators, and the FAA. Advanced analysis methods are under development and an extensive testing program is under way to study fatigue crack growth and fracture in complex built-up shell structures. Innovative nondestructive examination technologies are also being developed to provide large area inspection capability to detect corrosion, disbonds, and cracks. Recent fracture mechanics results applicable to predicting the growth of cracks under monotonic and cyclic loading at rivets in fuselage lap-splice joints are reviewed.
Fracture Mechanics Research at NASA Related to the Aging Commercial Transport Fleet
1992
17 pages
Report
Keine Angabe
Englisch
Aircraft , Materials Degradation & Fouling , Aircraft structures , Fatigue (Materials) , Fracture mechanics , Prediction analysis techniques , Structural failure , Transport aircraft , Commercial aircraft , Failure analysis , Airframes , Airline operations , Corrosion , Crack propagation , Cracks , Cyclic loads , Fracturing , Fuselages , Rivets , Structural stability