![](http://www.alamy.com/thumbs/6/0905600B-78CE-4D9D-9678-92BA8BAC54EE/W1RH00.jpg)
Archive image from page 62 of Deep submersible logistic support design. Deep submersible logistic support design concept. deepsubmersiblel00byrn Year: 1972 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
Archive image from page 62 of Deep submersible logistic support design. Deep submersible logistic support design concept. deepsubmersiblel00byrn Year: 1972 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
Size: 1475px × 1356px
Photo credit: © Actep Burstov / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 1970, 1972, archive, book, bookauthor, bookdecade, bookpublisher, booksponsor, booksubject, bookyear, byrnes_david_thomas_, drawing, historical, history, illustration, image, monterey_california_u_s_naval_postgraduate_school, naval_postgraduate_school_dudley_knox_library, oceanography, page, picture, print, reference, vintage, zimmermann_a_albrecht_b_1860