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At this time the smeared cruciform section (double-sided stiffeners) is not available. A good way to start is to use the smeared orthogrid concept. Then you can size the panels to obtain the optimum stiffener spacing. Once the spacing is known, you can model the stiffeners with bar elements and use the grid stiffened plugin package to size the grid stringers as cruciform sections to obtain the optimized height and thickness.

-James
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Hi James,

is there any way to analyse grid structure with double-sided flanges without having discrete modelled stiffeners?

For example, in a general large frame assembly sizing activity, with many component panels, initially we would use "Grid Stiffened Panel Family" sizing to determine the stiffener spacing, thickness, height, etc. i.e. "Technique 1 Stiffeners Smeared into Shells".

The FE models would then start to be updated and those stiffeners modelled as either "Technique 2 Stiffeners Discrete as Beams" or "Technique 3 Stiffeners Discrete as Beams/Shell".

Thanks.
Gary.
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Hi Gary,

We have a plugin package that can be used to analyze grid structure with double-sided flanges (cruciform sections).

See: https://hypersizer.com/help_7.3/#Udef/Plugin-HS_plugins_grid_stiffened.php%3FTocPath%3DAnalysis%2520Plugins%7CPublished%2520Plugin%2520Packages%7C_____3

-James
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How can uniaxial or grid stiffened panels with double sided flanges & stiffeners be analysed in Hypersizer?
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Project Applications / Re: Collaborative Working Environment
« Last post by James on August 16, 2017, 11:30:45 AM »
At this time the parallel project runner is not linked up to HyperFEA. You should be able to write a VBA script to submit the part projects to FEA in series.

-James
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Project Applications / Re: Collaborative Working Environment
« Last post by garyjh on August 16, 2017, 11:17:29 AM »
James,

thanks for the reply. Will try this.

Can it be used with HyperFEA?

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Panel Buckling / Re: Panel Buckling (+) Load
« Last post by Todd Anderson on August 08, 2017, 10:03:04 AM »
Thank you James... ah!  I dropped the minus sign so had the loads reversed!  Thanks for the pointer to that page... somehow I overlooked it.  Best, Todd
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Project Applications / Re: Collaborative Working Environment
« Last post by James on August 08, 2017, 10:00:20 AM »
We have a new capability to automatically split the large GFEM into smaller part projects to be shared by multiple engineers.

See: https://hypersizer.com/help_7.3/#Projects/Run in Parallel.php?

I hope this is helpful.

-James
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Software Installation / Re: Error Message
« Last post by James on August 08, 2017, 09:58:26 AM »
This requires a registry update to resolve this error. This is not ideal but it is a temporary work around for those that have admin privileges to their machine.

Update the following registry keys to point to your working folder on the C drive.
 
How to change the registry keys..
 - Start > search “regedit” > launch regedit.exe
 - Navigate to > HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Collier Research Corporation\HyperSizer
 - Change the “ReferenceFolder” key to the working folder path on your C drive
 - Navigate to > HKEY_CURRENT_USER\Software\VB and VBA Program Settings\HyperSizer\Project
      -      Change the “WorkingFolder” key to the working folder path on your C drive
 



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Panel Buckling / Re: Panel Buckling (+) Load
« Last post by James on August 08, 2017, 09:49:50 AM »
Hi Todd,

There is a help topic that explains the margin of safety codes.
See: https://hypersizer.com/help_7.3/#ReportMS/report-ms-ms_codes.php?

I hope this is helpful.

-James
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