Abstract
This paper presents the three-dimensional photoelastic analyses accompanied by extensive finite-element studies of several thin-shell pressure vessels with various cylindrical intersections. The models consisted of right circular cylindrical shells with diameter-to-thickness ratios of 220, reinforced with circumferential, longitudinal and diagonal T-stiffeners. The cylindrical shells and stiffeners were intersected by various smaller cylinders producing complex intersection joints which included radial and angular fillets.
Each of the models was constructed from 80 to 150 parts prepared from flat sheets, “contour-cast” shells, and milled machined parts. The model techniques as well as the machining, assembling and testing methods of the pressure vessels are presented.
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References
Takahashi, S. K. and Mark, R., “Photoelastic Investigation of Stress Concentration in Sphere-Cylinder Transition Regions,” Naval Civil Engineering Laboratory Technical Report R-572, Port Hueneme, CA (April 1968).
Hoyt, Philip M. and Chang, Bin, “Stress Concentration in Hull Shapes from Surface Discontinuities,” Naval Civil Engineering Laboratory Contract Report CR 69.033, University of Wyoming (April 1969).
Hunter, A. R. andSkogh, J., “A Photoelastic and Finite Element Investigation of a Non-symmetric Plug-hatch Configuration,”Experimental Mechanics,13 (3),132–137 (Mar. 1973).
Durelli, A. J., del Rio, C. J., Parks, V. J., and Fing, H., “Stresses in a Pressurized Cylinder with a Hole,” Proc. of the ASCE, Jnl. of the Struct. Div., 383–399 (Oct. 1967).
Durelli, A. J., Parks, V. J. and Lee, H.-C., “Stresses in a Perforated Ribbed Cylindrical Shell Subjected to Internal Pressure,” Int. Jnl. Solids Structures,5 (1969).
Taylor, C. E., Lind, N. C. and Schweiker, J. W., “A Three Dimensional Study of Stresses Around Reinforced Outlets in Pressure Vessels,” Welding Research Council Bull. No. 51 ({mtJan.}1959).
Leven, M. M., “Photoelastic Determination of Stresses at an Opening in a Thin-Walled Cylindrical Pressure Vessel,” Westinghouse Research Laboratories Research Report 67-9D7-PHOTO-R1 (Aug. 24, 1967).
Taylor, C. E. and Lind, N. C., “Photoelastic Study of the Stresses Near Openings in Pressure Vessels,” 1–24; Leven, M. M., “Photoelastic Determination of the Stresses in Reinforced Openings in Pressure Vessels,” Welding Research Council, Bulletin No. 113, 25–52 (April 1, 1966).
Redner, S. S. and Perrotta, J. H., “New Methods of Photoelastic Investigation of Wye Manifold Branches,” ASCE, Natl. Meeting of Water Resources Engrg. (Oct. 1967).
Nickola, W. E. andGreaves, M. J., “Construction of Complex Photoelastic Models using Molded-epoxy Sheets,”Experimental Mechanics,10 (4),23N-30N (April 1970).
Mark, Robert, “Photoelastic Analysis of Thin Plate and Shell Building Structures by the Stress Freezing Method,” Princeton University, Department of Civil Engineering, Research Report No. 65-6 (Dec. 1965).
Johnson, Robert L., “Model Making and Slicing for Three-dimensional Photoelasticity,”Experimental Mechanics,9 (3),23N-32N (Mar. 1969).
Mark, Robert, “Eliminating the Body-force Effect in Stress-Frozen Models,”Experimental Mechanics,5 (7),239–240 (July 1965).
Gilman, Rodger, “Theory and Operation of a Cartesian Diver Type of Manostat,” Industrial and Engineering Chemistry,18 (10) (Oct. 15,1946).
Wilson, Edward L., SAP, A General Structural Analysis Program, Contract Report, DACW 68-67-C-004 to Walla Walla District U.S. Engineers Office, University of California, Berkeley, CA (Sept. 1970).
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Warren, G.E. Photoelastic tests on complex intersections of reinforced thin-shell cylinders. Experimental Mechanics 15, 201–208 (1975). https://doi.org/10.1007/BF02319148
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DOI: https://doi.org/10.1007/BF02319148