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beam end release

beam end release

beam end release

(OP)
Can ABAQUS model a partial end release for beam elements?
Or spring elements have to be used in conjunction with MPCs?

Thanks

Aldo

RE: beam end release

Aldo

Abaqus has the *RELEASE keyword which can release a rotational degree of freedom or a combination of rotational degrees of freedom at one or both ends of a beam element.

There doesn't appear to be an option to release translational degrees of freedom.

RE: beam end release

(OP)
yes John,

I know of the *release option. But this option completely release the chosen force component.

I would like insted to retain a certain percentage of stiffnes...

Thanks Aldo

RE: beam end release

For "partial release" or "partial stiffness" of the beam end you would have to use a rotational spring with finite stiffness.

RE: beam end release

Drej,

How can you apply a rotational spring? What's the card used??

Cheers

RE: beam end release

Look in the ABAQUS users manual for spring elements (SPRING2).

RE: beam end release

Drej,

I am trying to put a spring in my model, which consists of a pinned-end beam. I need the spring in one pinned end to diminish the deflection of the beam, which undergoes large displacements.
They say in doc that, for large displ it's better to use JointC, but this one requires 2 nodes.

How can I define the spring for my model?

Cheers,

J

RE: beam end release

Check the help/user's manual (Vol. II Section 17.), as in here it tells you everything you need to know about your torsional springs in a very ABAQUS-straightforward-and-easy-to-understand way. If only all FE help manuals were the same...

-- drej --

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