12. O. Olsen. "Implosion analysis of concrete cylinders under hydro- 

 static pressure," in Proceedings, American Concrete Institute, vol 75, 

 no. 3, Mar 1978, pp 82-85. 



13. Civil Engineering Laboratory. Technical Report R-869: Long-term 

 deep-ocean test of concrete spherical structures - Results after 6 

 years, by H. H. Haynes. Port Hueneme, Calif., Jan 1979, p. 48. 



14. A. M. Neville. Properties of concrete, 2nd Ed., New York, N.Y., 

 Pitman Publishing, 1973, p. 259. 



15. Civil Engineering Laboratory. Technical Report R-588: Behavior 

 of spherical concrete hulls under hydrostatic loading. Part III - Rela- 

 tionship between thickness-to-diameter ratio and critical pressures, 

 strains, and water permeability rates," by J. O. Stachiw and K. Mack. 

 Port Hueneme, Cahf . , Jun 1968 (AD 8354926). 



16. . Technical Memorandum M-44-76-4: Results of concrete 



cylinder implosion test program, by Harvey H. Haynes and Roy S. 

 Highberg. Port Hueneme, Calif., Apr 1976, p. 391. 



17. . Technical Note N-1367: Adhesives for use under- 

 water, by R. W. Drisko, J. B. Crilly, and R. M. Staples. Port Hue- 

 neme, CaHf., Dec 1974. 



18. . Technical Note N-1173: Evaluation of eight epoxy 



adhesives for bonding concrete and microconcrete structural components 

 exposed to room and hydrostatic pressure conditions, by T. Roe, A. F. 

 Curry, and P. C. Zubiate. Port Hueneme, Cahf . , Jul 1971. 



19. S. P. Timoshenko and J. M. Gere. Theory of elastic stability, 

 2nd Ed. New York, N.Y., McGraw-HiU, 1961, p. 295. 



26 



