[Geoqus] Winkler buoyancy forces

[Kasper Fischer]

Dear Jack,

you can use the Abaqus keyword *FOUNDATION to model Winkler foundations,
i. e. forces proportional to the displacement. You can choose the
amplitude of the foundation to be equal to to g*delta rho to model
buoyancy forces. In that case your plate will foat on a liquid mantle.
If you also apply gravity to your model than you also have to apply a
lithostatic pressure to the base of the model to prevent any initial
displacements. This might be not quiet easy if your model is not layered
horizontaly.

I hope that will help you.

Does anybody has an idea how to apply the lithostatic pressure without
calculating the pressure in advance?

Best regards

Kasper


Jack Loveless schrieb:

>Dear Abaqus users,
>  Can anyone provide insight into using ABAQUS to model Winkler
>restoring forces, or any technique to prescribe isostatic boundary
>conditions to the base of a gravitationally loaded body?  I could make
>the plate very long in the depth dimension and then restrict vertical
>displacement on its lower boundary, but I am interested in modeling a
>finite-thickness plate where bending stresses may be important.
>  Many thanks in advance,
>  Jack
>
>Jack Loveless
>Department of Earth and Atmospheric Sciences
>Cornell University
>3147 Snee Hall
>Ithaca, NY 14853-1504
>(607) 255.9404
>  jploveless at gmail.com
>_______________________________________________
>Geoqus mailing list
>Geoqus at lists.ruhr-uni-bochum.de
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>  
>


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| Dr. Kasper D. Fischer          <kasper.fischer at ruhr-uni-bochum.de> |
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