. Development of a spherical acrylic plastic pressure hull for hydrospace application. Hulls (Naval architecture); Submersibles. Figure 64. Model capsule of 15-inch diameter with simplified polar penetration closures: assembly. Note the single spring-loaded tie rod. Short-term tests were performed on 11 capsules (Table 4). All of the models were equipped with tie rods except for capsules 0, 16 and 20. These tests were to provide immediate data on the maximum hydrostatic pressure the capsule can withstand under different temperatures in the 32 to 114°F range. Furthermore, the critical pressures
. Development of a spherical acrylic plastic pressure hull for hydrospace application. Hulls (Naval architecture); Submersibles. Figure 64. Model capsule of 15-inch diameter with simplified polar penetration closures: assembly. Note the single spring-loaded tie rod. Short-term tests were performed on 11 capsules (Table 4). All of the models were equipped with tie rods except for capsules 0, 16 and 20. These tests were to provide immediate data on the maximum hydrostatic pressure the capsule can withstand under different temperatures in the 32 to 114°F range. Furthermore, the critical pressures at which implosion of the models occurred would serve as benchmarks to which critical pressures of models tested under long term (Table 5) and cyclic (Table 6) conditions could be compared to determine the effect of cycling, or long-term loading on their structural integrity. For all of these tests, water was used on the exterior and interior to insure proper temperature control. Since the water in the interior of the hull was vented to the atmosphere by tubing, its presence had no reinforcing effect on the hull. 95. 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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