Four different theories predicting the burst strength of longitudinally slit pressurized fabric cylinders are compared with tests of warp cylinders having various diameters and lengths, containing slits of various lengths and widths. The fabric used was a neoprene-coated Dacron polyester with a warp strength of about 150 lb/inch. An equation requiring three empirical constants, derived from Griffith's theory of rupture, fits the data very well. Other less empirical equations fit less well. An elastic theory of Hedgepeth's for a small number of cut threads is extended to long shts, but is too conservative.
A.D. Topping , Behavior of Materials under Combined Stresses in Pressurized Structures, Aeronautical Engineering Review , Vol. 16, No. 2, February 1957, p. 56-59.
2.
A.D. Topping , An Introduction to Biaxial Stress Problems m Fabric Structures, Aerospace Engineering, Vol. 20, No. 4, April 1961 , p. 18-19, 53-58.
3.
A.A. Griffith , The Phenomena of Rupture and Flow in Solids , Phil. Trans. Roy. Soc. (London), Vol. 221, Oct. 21, 1920, p. 163-198.
4.
D. Williams, Crack Propagation in Sheet Metal Material - Some Conclusions Deduced from a Combination of Theory and Experiment, C. P. No. 467, A. R. C. Technical Report, 1960.
5.
R.W. Peters and P. Kuhn, Bursting Strength of Unstiffened Pressure Cylinders with Slits, NACA TN-3993 , April 1957.
6.
R.B. Anderson and T.L. Sullivan, Fracture Mechanics of Through-Cracked Pressure Vessels, NASA TN D-3252, Feb. 1966.
7.
J.M. Hedgepeth, Stress Concentration in Filamentary Structures, NASA TN D-882, May 1961.
8.
H.B. Dwight, Tables of Integrals and other Mathematical Data, The MacMillan Company, New York, (1947).
9.
D. H. Menzel, (ed.) Fundamental Formulas of Physics, Dover Publications, Inc., New York, (1960).
10.
J.W. Deaton, Bursting Strength of Film and Fabric Plastic Cylinders Containing an Axial Slit; Transactions, 3rd Aerospace Expandable and Modular Structures Conference May 16-18, 1967, Miami Beach; AFAPL TR 68-17, p. 255-281.
11.
G.W. Zender and J.W. Deaton, Strength of Filamentary Sheets with One or More Fibers Broken, NASA TN D-1609, March 1963.
12.
J.M. Hedgepeth and P. Van Dyke, Local Stress Concentrations m Imperfect Filamentary Composite Materials, Journal of Composite Materials , Vol. 1, No. 3, July 1967, p. 294-309.
13.
J.M. Hedgepeth and P. Van Dyke, Stress Concentrations from Single Filament Failures in Composite Materials , presented at the Third Annual Symposium on High Performance Composites, St. Louis, Mo., October 26-27, 1967.
