Determination of the Best Cross Section for a Box Beam Subjected to Bending Stresses
A 1930 NASA technical report, drawn from the NASA Technical Reports Server, on finding the most efficient cross section for a box beam under bending stress, written for aeronautical engineers. The pictures are dense engineering charts and a section diagram: curves of 2η and n against a ratio on labelled axes, a grid of curves plotted against λ0 with families of labelled lines, and a box-beam section with flange thicknesses h and x, web thickness b, and neutral axis marked. A designer could take the disciplined use of hatching and labelled dimensions as a model for technical diagrams.
