<html><head></head><body><p dir="ltr">I would need material properties of both materials, volume fraction of each, and composite lay-up (fiber orientations and layer thicknesses).</p>
<p dir="ltr">I'm not sure how to account for lay direction on a sphere, though.</p>
<p dir="ltr">Sean<br>
</p>
<br><br><div class="gmail_quote">On April 10, 2014 10:34:00 AM MDT, "Carsten Standfuß " <MerlinSub@t-online.de> wrote:<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<font face="Courier New" size="2">Okay Sean.. and
now again with carbon fiber ín a
ceramic matrix..<br /></font><br />:-O & :-) vbr
Carsten<br /><br />"swaters" <<a href="mailto:swaters@waters-ks.com">swaters@waters-ks.com</a>>
schrieb:<br />> Wow. Thanks Sean. I really appriciate the
calculations!<br />Thanks,<br />Scott Waters<br /><br /><br /><br /><br />Sent from my
U.S. Cellular© Smartphone"Sean T. Stevenson" <<a href="mailto:cast55@telus.net">cast55@telus.net</a>> wrote: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 <a href="callto:00001">0.0001</a> m at a time until the
desired working depth was reached. Executive summary: <a href="callto:+378">0.0378</a> m (1.4882 in) for A516 gr 70, and <a href="callto:+208">0.0208</a> m (<a href="callto:08189">0.8189</a> in)
for HY-80. Details below:<br /><br /><br /><br /><br /><br />Let me know if
you want to run additional scenarios.<br /><br />Sean<br /><br /><br /><font face="Courier New" size="2"> </font><p style="margin-top: 2.5em; margin-bottom: 1em; border-bottom: 1px solid #000"></p><pre class="k9mail"><hr /><br />Personal_Submersibles mailing list<br />Personal_Submersibles@psubs.org<br /><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br /></pre></blockquote></div><br>
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