[Geoqus] Byerlee / creep law in Abaqus

[Kasper Fischer]

Hi Susan,

thank you for your answer. I will try to introduce this in my model. I
just have one more question:
Are You using temperatur dependent friction angles or hardening parameters?
The reason why I ask this is because the Abaqus theory manual shows a
picture (Fig. 4.4.2-7) of a region where no creep is active in the
p-q-plane (a cone below the line p tan \beta). Therefore I would have to
decrease \beta to small values at high p (=depth, high T) to have creep
at low q for high p. Is this right?

Maybe you can post the *DRUCKER PRAGER, *DRUCKER PRAGER HARDENING, and
*DRUCKER PRAGE CREEP (truncated)  lines of an example.

cheers,

Kasper

Susan Ellis wrote:

>Hi Kaspar
>
>You can use *DRUCKER PRAGER CREEP
>and put in a temperature dependency there.
>I have a long list of A*exp(-Q/RT), n, 0, T
>values following this line. It works quite well
>and gives a smooth brittle-ductile transition zone
>
>cheers,
>Susan
>
>Dr Susan Ellis
>Institute of Geological and Nuclear Sciences
>Gracefield Rd, PO Box 30368
>Lower Hutt
>New Zealand
>S.Ellis at gns.cri.nz
>ph (home): 0064-4971-5024
>ph (office): 0064-4570-4730
>fax (office): 0064-4570-4600
>
>
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| Dr. Kasper D. Fischer             <kasper.fischer at ruhr-uni-bochum.de> |
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