[PSUBS-MAILIST] K3000 spherical shell calculations

[Sean T. Stevenson]

Scott, my pressure hull optimization software project has been sitting
idle on the back burner for some time now.  Nevertheless, some of the
modules work, so I ran your numbers through the spherical shell
calculator.  The results shown below are in compliance with the most
recent ABS rules, with no additional safety factor added.  I used your
6' dimension as the inner diameter, and incremented shell thickness
0.0001 m at a time until the desired working depth was reached. 
Executive summary:  0.0378 m (1.4882 in) for A516 gr 70, and 0.0208 m
(0.8189 in) for HY-80.  Details below:





Let me know if you want to run additional scenarios.

Sean

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