1932 Volume 35 Issue 183 Pages 701-708
A beam with a section formed by two concentric circles and two radii, i.e. a pipe with a longitudinal groove at one side parallel to the axis was fixed at one end and loaded at the other end. The shearing stresses were classified into two kinds, one as a function of the flexure and the other as a function of the twisting, and it was concluded that the effect of the latter is very large when the thickness is small.