[CIG-SHORT] Anisotropy in Pylith

[Ravi Kanda]

Charles,

Thanks for the detailed response - much appreciated!

Ravi.
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On 08/24/2014 03:20 PM, Charles Williams wrote:
> Hi Ravi,
>
> At present, the general recipe for a rheological model is:
>
> 1.  Write the C++ code that does the actual work, using one of the existing models as a template.
> 2.  Write the top-level Python, which generally defines the parameters used by the model.
> 3.  Write a SWIG binding for the model, which will look very much like the bindings for the other materials.
>
> It’s not generally very difficult.  Things to think about:
>
> 1.  Is the model linear or nonlinear?
> 2.  What parameters are needed to define the model, and what is the easiest way to specify them?
> 3.  Is it easy to spatially vary the parameters?  As an example, take a look at the power-law viscoelastic material.  We had to reformulate that model because the usual parameterization made the units of the parameters dependent on the power-law exponent.
>
> I haven’t looked at the models you mention, but I would guess it wouldn’t be too hard to do.  At some point, just having anisotropic elasticity would also be nice.
>
> Cheers,
> Charles
>
> ...
>
> Charles A. Williams
> Scientist
> GNS Science
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>
>
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-- 
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Ravi Kanda
Post-Doctoral Researcher
Department of Geology
Utah State University
4505 Old Main Hill
Logan UT 84322-4505
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Web Page: http://www.usu.edu/geo/rkanda/

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