How to assign different shear areas in an element

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maksins
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Joined: Sun Jun 19, 2011 10:28 am
Location: University at Buffalo

How to assign different shear areas in an element

Post by maksins »

I need to create a beam element with different shear areas of the section in the two directions. Any suggestions?
Manish Kumar
Department of Civil, Structural and Environmental Engineering
University at Buffalo, The State University of New York

http://www.manishkumar.org
fmk
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Re: How to assign different shear areas in an element

Post by fmk »

if not elastic, your only option is to break a forceBeam element up int a number of elements each with different shear properties. do not use the defaults integration, use legendre instead.
maksins
Posts: 32
Joined: Sun Jun 19, 2011 10:28 am
Location: University at Buffalo

Re: How to assign different shear areas in an element

Post by maksins »

Hi Frank,
My element is elastic, and I want to assign different shear areas (Ay and Az) at a particular section, not along the length of the element. The shear properties are constant along the length. It is basically to simulate eccentricity in the stick model of a nuclear reactor.
Can I use "Elastic" section with alphaY=Ay/A, and alphaZ=Ay/A and then use it in a forceBeamColumn element?
Manish Kumar
Department of Civil, Structural and Environmental Engineering
University at Buffalo, The State University of New York

http://www.manishkumar.org
mhscott
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Re: How to assign different shear areas in an element

Post by mhscott »

If you want different section models within one element, you can use the "User Defined" integration option. See http://opensees.berkeley.edu/wiki/index ... nTypes.pdf
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