Re: [PSUBS-MAILIST] FEA Work on Acrylic CT for KLH-500

["Alan James" <alanjames@xtra.co.nz>]

Hi Jon
Below is a link to an article on ABS accepting FEA data for certifiation on 
a non standard design.
I sent Brent this the other day.
http://www.techbriefs.com/component/content/article/1528
There was strain sensor testing done wich verified the FEA results.
Be good to learn a bit more on this. Maybe  ABS could certify various 
programmes
so you'd know you had it right before you submitted anything to them.
Perhaps ABS could analyze everything structural with FEA & bring their costs 
right down.
Be good to put a question to them as to where they're going with this.
Alan




----- Original Message ----- 
From: "Jon Wallace" <jonw@psubs.org>
To: <personal_submersibles@psubs.org>
Sent: Monday, August 31, 2009 3:43 AM
Subject: Re: [PSUBS-MAILIST] FEA Work on Acrylic CT for KLH-500


> Brent,
>
> This is why I suggested doing some comparison tests against known data in 
> Stachiw's book. Replicating the t/D data points of .045 that Stachiw 
> recorded with actual testing (page 754) would give some credence that 
> you've got the program configured correctly.
>
> Jon
>
> > Today’s programs allow almost anyone to run FEA programs very easily but 
> > there has to be some deeper knowledge of the subject by the programmer to 
> > get answers that reflect reality. While your results look very 
> > professional, they can be misleading to those that do not know what to 
> > question (my knowledge and experience with FEA is rudimentary at best and 
> > I find issues). In the case of submarines if these persons act upon your 
> > published FEA solutions, it could be detrimental to their health. I 
> > respect all of the effort and research that you have put into your FEA 
> > work but would caution restraint in publishing your results.
>
>
>
>
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