STRESS DISTRIBUTION IN A STIFFENED CIRCULAR CYLINDRICAL SHELL WITH A CIRCULAR CUTOUT UNDER HYDROSTATIC PRESSURE.

摘要

The report covers the theoretical analysis of a cylindrical shell with a circular cutout and stiffened internally with equally spaced rings. The shell is considered to be infinitely long,capped at the ends and subjected to internal pressure. The exact solution of the partial differential equations of Donnell's and Flugge's theories of thin cylindrical shells is obtained in the form of an infinite series. Fourier expansions and the method of least square error are employed to satisfy the boundary conditions. Typical numerical results for the case of two ring stiffeners are presented at the end of the report. (Author)