NASA Technical Reports Server (NASA) · 1992 · 10 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallic MaterialsStructural MaterialsDamage MechanicsFailure TheoriesFatigueFracture MechanicsFracture PropagationStrength Of MaterialsCrack GrowthCrack Growth AnalysisCrack Growth ModelingCrack InitiationCrack Propagation AnalysisCracksFatigue Life PredictionLife Prediction
NASA and the Chinese Aeronautics Establishment have participated in a Fatigue and Fracture Mechanics Cooperative Program giving attention to small-crack effects in high-strength Al alloys. Experimental and analytical investigations studied crack initiation and growth behavior of small cracks in both bare 7075-T6 and clad LC9cs Al alloys, with a view to the improvement of their fracture-mechanics analyses in the cases of surface crack and corner crack configurations. It is also expected that superior life-prediction methods will be developed in order to correlate and predict small crack and large crack growth with various load histories.