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NACA-TN-2566: A Study of Elastic and Plastic Stress Concentration Factors Due to Notches and Fillets in Flat Plates
Abstract: Six large 24s-t3 aluminum-alloy-sheet specimens containing various notches or fillets were tested in tension to determine their stress concentration factors in both the elastic and plastic ranges. The elastic stress ...
NASA-TN-D-1522: Variable-amplitude fatigue tests with particular attention to the effects of high and low loads
Abstract: Variable-amplitude fatigue tests - effect of load.
NASA-TN-D-3149: Influence of programming techniques and of varying limit load factor on maneuver load fatigue test results
Abstract: Variable amplitude axial load fatigue test on notched aluminum alloy specimens - aircraft component testing.
NASA-TN-D-7173: Effect of specimen thickness of fatigue-crack-growth behavior and fracture toughness of 7075-T6 and 7178-T6 aluminum alloys
Abstract: A study was made to determine the effects of specimen thickness on fatigue crack growth and fracture behavior of 7075-T6 and 7178-T6 aluminum alloy sheet and plate. Specimen thicknesses ranged from 5.1 to 12.7 mm (0.20 to ...
NACA-TN-3462: Tensile properties of 7075-T6 and 2024-T3 aluminum-alloy sheet heated at uniform temperature rates under constant load
Abstract: Results are presented of tests to determine the effect of heating at uniform temperature rates from 0.2 degrees to 100 degrees F. per second on the tensile properties of 7075-T6 d(75s-T6) and 2024-T3 (24s-T3) aluminum-alloy ...
NASA-TN-D-1259: Unified Notch-Strength Analysis for Wrought Aluminum Alloys
Abstract: A simple engineering method is presented for predicting the strength of notched parts made from wrought aluminum alloys under static loading or under repeated loading near the fatigue limit. Assumed to be known are tensile ...
NASA-TN-D-212: Axial-load fatigue tests of 2024-T3 and 7075-T6 aluminum-alloy sheet specimens under constant- and variable-amplitude loads
Abstract: Sheet specimens of 2024-T3 and 7075-T6 aluminum alloy with a theoretical elastic stress concentration factors KT = 4.0 were subjected to repeated axial loads. The load amplitude was held constant or varied by ...
NACA-TN-2021: Buckling of Thin-Walled Cylinder under Axial Compression and Internal Pressure
Abstract: An investigation was made of a thin-walled cylinder under axial compression and various internal pressures to study the effect of the internal pressure on the compressive buckling stress of the cylinder. A theoretical ...
NASA-TN-D-1584: Evaluation of the influence of load randomization and of ground-air-ground cycles on fatigue life
Abstract: Effects of variable-amplitude axial loads and ground-air-ground cycles on fatigue life of aluminum alloys.
NACA-TN-3431: An Analysis of the Stability and Ultimate Compressive Strength of Short Sheet-Stringer Panels with Special Reference to the Influence of Riveted Connection Between Sheet and Stringe
Abstract: A method of strength analysis of short sheet-stringer panels subjected to compression is presented which takes into account the effect that the riveted attachments between the plate and the stiffeners have on the strength ...