The author points out that when a thin hemispherical shell is fixed at the edge and subjected to internal pressure, bending stresses are set up in a meridional element near the edge of the shell. Where these bending stresses are large, the shell can be improved by a uniform tapering of the shell thickness near the edge. The author supplies methods of solving for stresses in such a shell with a thickened periphery when the shell is subjected to internal pressure and fixed at its edge, when it is only partially restrained at its edge, and when the shell is loaded symmetrically to its axis of rotation, but in a manner other than by internal pressure.

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