Comparison of Three Methods for Calculating the Compressive Strength of Flat and Slightly Curved Sheet and Stiffener Combinations
This is a 1933 NASA technical report comparing three methods for calculating compressive strength of flat and slightly curved sheet-and-stiffener structures, written for aeronautical engineers. Its pictures are engineering charts: graph paper plots of stiffener length against stress, moment of inertia curves, and channel and angle section diagrams with labelled dimensions. A designer might borrow the clean monochrome plotting style, the thin dark curves on grid lines, and the small schematic section drawings.
