. Deep submersible logistic support design Oceanography. FIGURE 7. BROKEN SPHERICAL SHELL thickness. Shell thickness for unbroken spheres of similar ASG was assumed to be similar. Figure 7 shows a sphere broken for this purpose. A measurement of selected chips after implosion showed no major deviation from this assumption. Ultrasonic or X-ray measurements of shell thickness would have been desirable, but the equipment was not available. Sphericity was measured semi-qualitatively by the repeated ability of a shell to roll freely on a flat surface and come to rest without preference to
. Deep submersible logistic support design Oceanography. FIGURE 7. BROKEN SPHERICAL SHELL thickness. Shell thickness for unbroken spheres of similar ASG was assumed to be similar. Figure 7 shows a sphere broken for this purpose. A measurement of selected chips after implosion showed no major deviation from this assumption. Ultrasonic or X-ray measurements of shell thickness would have been desirable, but the equipment was not available. Sphericity was measured semi-qualitatively by the repeated ability of a shell to roll freely on a flat surface and come to rest without preference to a particular axis of orientation. All two inch diameter spheres and one three inch diameter sphere passed the sphericity test. A more complicated device for sphericity measurements can be devised using a vise to hold the sphere on a turntable. A dial indicator fixed to a platform adjacent to the turntable would record any deviation in local sphere radius as the turntable was rotated. 30. 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 Byrnes, David Monterey, California: U. S. Naval Postgraduate School
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