Nemo Model 2000 Acrylic Plastic Spherical Hull for Manned Submersible Operation at Depths to 3000 Feet

Download or read book Nemo Model 2000 Acrylic Plastic Spherical Hull for Manned Submersible Operation at Depths to 3000 Feet written by Jerry D. Stachiw and published by . This book was released on 1974 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nemo Model 2000 acrylic plastic pressure hull assembly is described and represents the latest addition to the Nemo hull series represented by Nemo Model 600 and 1000 hull assemblies. The 66 inch OD x 58 inch ID spherical acrylic hull with aluminum hatches has successfully withstood 24 hour long external hydrostatic pressurizations to 450, 900, 1340 and 1800 psi. Pressure cycling and short term destructive testing of 15 inch OD x 13 inch ID scale models has shown that the crackfree fatigue life is in excess of 1000 pressure cycles at depths to 3000 feet and the short term implosion pressure is in the range of 10,000 to 11,000 feet. Stress wave emissions have been found to be a good indicator of incipient failure.