Note on the Fatigue Properties of Steel and Light Alloy for Helicopter Rotor Blades
B.K.O. Lundberg, Director, The Aeronautical Research Institute of Sweden, FFA;, G. Larson, Research Engineer at the FFA
May 12, 1949
Note on the Fatigue Properties of Steel and Light Alloy for Helicopter Rotor Blades
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Note on the Fatigue Properties of Steel and Light Alloy for Helicopter Rotor Blades
Authors / Details: B.K.O. Lundberg, Director, The Aeronautical Research Institute of Sweden, FFA; and G. Larson, Research Engineer at the FFAAbstract
As it is well known the computation of the fatigue lifetime of a structural part must be based on three basic sets of information: a) the fatigue properties of the structural part or of such elements or strips of material in question that have the same qualities as regards notch effects or stress concentrations as the structural part itself. b) The load spectrum that is the magnitude and variation with time of the loads, of which the structural part will be subjected to in service c) a method of correlation of the fatigue properties and the load spectrum such as the cumulative damage theory regarding fixed wing aircraft.
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Note on the Fatigue Properties of Steel and Light Alloy for Helicopter Rotor Blades
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