Parallel model - truss elements

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dcizmar
Posts: 21
Joined: Wed May 16, 2007 6:48 am
Location: Faculty of Civil Engineering

Parallel model - truss elements

Post by dcizmar »

I would like to know if it is possible to make parallel model of n truss elements. I would apply force (and increase) it until first element fails and force redistribution takes place....

Does anybody has idea how to model this?
silvia
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Post by silvia »

just put them all in there on the same nodes....
that'd be cool
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
dcizmar
Posts: 21
Joined: Wed May 16, 2007 6:48 am
Location: Faculty of Civil Engineering

Post by dcizmar »

thanks Silvia. :)
so this settles the geometry problem.

but what material to use?
Hysteretic?
how to model failure of an element?
silvia
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Joined: Tue Jan 11, 2005 7:44 am
Location: Degenkolb Engineers
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Post by silvia »

it depends on what you are trying to model.
look at the hysteretic material, maybe.
Silvia Mazzoni, PhD
Structural Consultant
Degenkolb Engineers
235 Montgomery Street, Suite 500
San Francisco, CA. 94104
dcizmar
Posts: 21
Joined: Wed May 16, 2007 6:48 am
Location: Faculty of Civil Engineering

Post by dcizmar »

it is theoretical model. I intend to take n truss elements. Increase load until first element fails, then the redistribution of the forces will take place. After that I have n-1 element and increase force again (if possible).

This won't be static calculation as I am interested in reliability of this system. But when I know how to model this static system problem is solved.

I will take a look at hysteretic material.
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