. Development of a spherical acrylic plastic pressure hull for hydrospace application. Hulls (Naval architecture); Submersibles. range of principal strains on the interior surface in the equatorial region of the sphere. range of principal strains on the exterior surface in the equatorial region of the sphere pressurization of the hull to 500 psi at 100-psi/min rate Notes: 1. Dimensions of sphereâ66-in. OD x 61-in. ID 2. Materialâgrade G Plexiglas 3. Temperatureâ68 to 70°F 100 150 200 Time (minutes) Figure 108. Range of strains at the equatorial region of the 66-inch-diameter capsule under sus
. Development of a spherical acrylic plastic pressure hull for hydrospace application. Hulls (Naval architecture); Submersibles. range of principal strains on the interior surface in the equatorial region of the sphere. range of principal strains on the exterior surface in the equatorial region of the sphere pressurization of the hull to 500 psi at 100-psi/min rate Notes: 1. Dimensions of sphereâ66-in. OD x 61-in. ID 2. Materialâgrade G Plexiglas 3. Temperatureâ68 to 70°F 100 150 200 Time (minutes) Figure 108. Range of strains at the equatorial region of the 66-inch-diameter capsule under sustained hydrostatic loading of 500 psi. ! i | relaxation 800 psi at 0 psi 700 psi 600 psi 500 psi 400 psi 300 psi Motes: ^"~~~ ^^~~~ ""~~ 2. Temperatureâ68 to 70°F 3. Dimensions of sphereâ 66-in. OD x 61-in. ID 4. Materialâgrade G Plexiglas â â ' 200 psi 100 psi Time (minutes x 10 ) Figure 109. Typical viscoelastic strain on exterior surface of equatorial region in 66-inch-diameter capsule under sustained hydrostatic loadings of different magnitude, and subsequent relaxation. 144. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stachiw, Jerry D. , 1931-; Naval Civil Engineering Laboratory (Port Hueneme, Calif. ). Port Hueneme, Calif. : U. S. Naval Civil Engineering Laboratory
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