Flanged Acrylic Plastic Hemispherical Shells for Undersea Application

[+] Author and Article Information
J. D. Stachiw

Naval Undersea Center, San Diego, Calif.

J. R. Maison

Naval Civil Engineering Laboratory, Port Hueneme, Calif.

J. Eng. Ind 97(1), 1-9 (Feb 01, 1975) (9 pages) doi:10.1115/1.3438537 History: Received October 17, 1972; Online July 15, 2010


The effects of an equatorial flange and a nonuniform wall thickness upon the critical pressure and stress distribution in acrylic plastic hemispheres have been investigated by experimental and analytical methods. Forty acrylic hemispheres were fabricated and tested to destruction under short term hydrostatic pressure applied on the convex surface. Dome apex displacements were obtained from each specimen and strains were obtained from a selected few. A finite element elastic analysis was performed on one window configuration for two different boundary conditions and the experimentally derived stresses were used to determine which boundary conditions was the best for analytical analysis.

Copyright © 1975 by ASME
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