Bending stresses due to torsion in cantilever box beams
This 1935 NACA technical note, published by NASA's technical reports server, reports laboratory tests of cantilever box beams under torsion and measured bending stresses for aircraft wing design. Its pictures are plotted load-stress curves with straight-line fits, labelled test series and station positions, and a cross-section sketch of a box beam with dashed and solid lines for buckled and unbuckled conditions, useful to a designer as a clear, technical graph style.
