A Summary of NACA Research on the Strength and Creep of Aircraft Structures at Elevated Temperatures

Résumé du livre

This paper summarizes some NACA research on the strength and creep of aircraft structural elements and components at elevated temperatures. Experimental data for aluminum-alloy columns, plates, stiffened panels, and multiweb box beams are presented for temperature up to 600 degrees F and compared with results predicted from materials data. Methods are described for predicting maximum strength from materials stress-strain curves and creep lifetime from isochronous stress-strain curves. Some observations on the probable effect of creep on the design of aircraft structures are also included to illustrate the influence of design criteria on the weight of aircraft structures at elevated temperatures.