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Understanding buckling factors from ANSYS

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SuG89

Structural
Joined
Aug 10, 2014
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118
Location
IN
Hello everyone,

Please see the attached list of buckling factors. Glass means monolithic hypar and other columns are segmented (segment shape: square, diamond, etc) hypars with adhesive joints.

Hypar is expected to be highly stable in buckling as one of the principal directions carry tensile forces. Also, I read that the first positive critical buckling factor should be considered and the negative ones can be igmored. As you can see, the first positive buckling factor is very low. Can anyone explain why this is happening?

Best regards,
Sushant
Uni Stuttgart
 
 http://files.engineering.com/getfile.aspx?folder=31478a83-dd53-4379-a004-11335033c03e&file=bucklling_factor_Ansys.PNG
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