[CIG-SHORT] Fwd: rheology model in pylith

[Brad Aagaard]

Zhen,

Charles Williams is more familiar with how to setup the generalized 
Maxwell model to match some common viscoelastic rheologies than I am. I 
am reposting this question to cig-short and cc'ing Charles.

Brad



-------- Forwarded Message --------
Subject: 	rheology model in pylith
Date: 	Fri, 30 Jan 2015 02:15:43 +0000
From: 	Liu, Zhen (329A) <Zhen.Liu at jpl.nasa.gov>
To: 	baagaard at usgs.gov <baagaard at usgs.gov>



Hi Brad,

How are you? We have email communication before about CIG workshop. At
present I am looking into the Pylith to see if I can use it in my
research. I notice that current pylith has Bulk rheology models
including Elastic model, Linear Maxwell viscoelastic models, Generalized
Maxwell viscoelastic models, Power-law viscoelastic model,
Drucker-Prager elastoplastic model. I am interested in adopting
bi-viscous Burgers rheology, which is the Kelvin-voigt plus maxwell
rheology in series. Do you know if this is something already in Pylith
or need to be implemented?

I understand that Kelvin-voigt and Maxwell rheology can be represented
as special case from generalized maxwell viscoelastic models. But it is
less clear to me how to represent the Burgers theology from the
generalized maxwell model (or not). Your any insight would be much
appreciated!

Thanks in advance for the help,

Best regards,
Zhen
-----------------------------------------------

Dr. Zhen Liu

Jet Propulsion Laboratory, M/S 300-233

California Institute of Technology

4800 Oak Grove Drive

Pasadena, CA 91109

Ph: 818-393-7506

fax: 818-354-9476

email: zhen.liu at jpl.nasa.gov