EFFECT OF CHANGEs IN TEST CONDITIONS AND LOADS ON FATIGUE LIFE OF WING STRUCTURE AND ITS ESTIMATION

Based on practice of the second fatigue test of an aircraft wing, the effect of changes in test conditions and loads on fatigue life of its structure is studied in this paper according to the ores of structural inner-stress analysis and cumulative damages. A prediction study was made on life of second fatigue test of the wing. Finally, the test results have demonstrated correctness of the prediction.