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[APDL] strain energy of cantilever beam
 
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saeed.akbari
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Joined: 20 Sep 2014
Posts: 19

PostPosted: Thu Dec 17, 2015 5:55 pm  Reply with quote

Hello All,

I'm modeling a cantilever beam with Plane183 and KEYOPT(3)=0 (plane stress).
Then I use SENE command to calculate stiffness (strain) energy of the beam.
The strain energy of the beam is a function of the beam thickness (normal to page).
I was wondering where i can input the beam thickness? And when KEYOPT(3)=0, what is the default beam thickness considered by the software?
Perhaps I have to create a 3D model of the beam to input the thckness ...
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Saeed Akbari, PhD student.
University of Toronto
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Martin Liddle
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Joined: 15 Aug 2008
Posts: 1274
Location: Chesterfield, UK

PostPosted: Thu Dec 17, 2015 10:45 pm  Reply with quote

[quote="saeed.akbari"]
I'm modeling a cantilever beam with Plane183 and KEYOPT(3)=0 (plane stress).
Then I use SENE command to calculate stiffness (strain) energy of the beam.
The strain energy of the beam is a function of the beam thickness (normal to page).
I was wondering where i can input the beam thickness? And when KEYOPT(3)=0, what is the default beam thickness considered by the software?
[/quote]
To be able to input thickness you need to use Keyopt(3)=3 and then thickness can be input as real constant THK. If I remember correctly the thickness with Keyopt(3) =0 will be unity.
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Martin Liddle, Tynemouth Computer Services,
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saeed.akbari
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Joined: 20 Sep 2014
Posts: 19

PostPosted: Thu Dec 17, 2015 10:48 pm  Reply with quote

That's true!
Thanks Martin!
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Saeed Akbari, PhD student.
University of Toronto
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