[CIG-SHORT] Output for friction coefficient along the fault

[Brad Aagaard]

Ekaterina,

Although the coefficient of friction is not available for output, you 
can compute the ratio of the magnitude of the shear traction to the 
normal traction. During sliding with a compressive normal traction, this 
should be equal to the coefficient of friction.

Regards,
Brad


On 10/15/17 6:44 PM, Ekaterina Bolotskaya wrote:
> Dear Charles,
>
> Yes, that is correct: I want the actual current friction coefficient
> that is different from the reference one.
> I got it. Thanks!
>
>
> Best regards,
> Ekaterina Bolotskaya
>
> PhD in Geophysics,
> Earth, Atmospheric and Planetary Science Department,
> Massachusetts Institute of Technology
> E-mail. bolee at mit.edu
> Mob. +1 (857) 284-2805 <tel:%2B1%20%28857%29%20284-2805>
>          +7 (963) 995-36-33 <tel:%2B7%20%28963%29%20995-36-33>
> ------------------------------------------------------------------------
> *From:* CIG-SHORT [cig-short-bounces at geodynamics.org] on behalf of
> Charles Williams [willic3 at gmail.com]
> *Sent:* Sunday, October 15, 2017 16:17
> *To:* cig-short
> *Subject:* Re: [CIG-SHORT] Output for friction coefficient along the fault
>
> Dear Ekaterina,
>
> In addition to the general fault info fields, these are the info fields
> available for rate-and-state friction:
>
>     self.availableFields = \
>         {'vertex': \
>            {'info': ["reference_friction_coefficient",
>                      "reference_slip_rate",
>                      "characteristic_slip_distance",
>                      "constitutive_parameter_a",
>                      "constitutive_parameter_b",
>                      "cohesion”],
>
> Also, see section 6.4 of the User Manual.  Unfortunately, if I’m
> understanding correctly, you want the actual computed friction
> coefficient, and I don’t believe that is one of the options for output.
>
> Cheers,
> Charles
>
>
>> On 16/10/2017, at 7:23 AM, Ekaterina Bolotskaya <bolee at mit.edu
>> <mailto:bolee at mit.edu>> wrote:
>>
>> Dear Pylith developers,
>>
>> Is there a way to output for friction coefficient along the fault
>> among other parameters (traction, slip, slip rate etc.)?
>> I'm using rate-and-state friction, My fault is a line (1D). My model
>> is 2D.
>>
>> Thanks!
>>
>>
>> Best regards,
>> Ekaterina Bolotskaya
>>
>> PhD in Geophysics,
>> Earth, Atmospheric and Planetary Science Department,
>> Massachusetts Institute of Technology
>> E-mail. bolee at mit.edu <mailto:bolee at mit.edu>
>> Mob. +1 (857) 284-2805 <tel:%2B1%20%28857%29%20284-2805>
>>          +7 (963) 995-36-33 <tel:%2B7%20%28963%29%20995-36-33>
>> _______________________________________________
>> CIG-SHORT mailing list
>> CIG-SHORT at geodynamics.org <mailto:CIG-SHORT at geodynamics.org>
>> http://lists.geodynamics.org/cgi-bin/mailman/listinfo/cig-short
>
> *Charles Williams I Geodynamic Modeler
> GNS Science **I** Te Pῡ Ao*
> 1 Fairway Drive, Avalon 5010, PO Box 30368, Lower Hutt 5040, New Zealand
> *Ph* 0064-4-570-4566 I *Mob* 0064-22-350-7326 I *Fax* 0064-4-570-4600*_
> _**http://www.gns.cri.nz/* *I* *Email: **C.Williams at gns.cri.nz*
> <mailto:your.email at gns.cri.nz>
>