For FaultCohesiveKin objects, the final_slip vertex info field needs to include the rupture name at the end. See examples/3d/hex8/step06.cfg.
Sorry that we don’t properly catch this error and provide a better error message.
Dear @baagaard ,
Thank you for your correction.
I have another question. I assign the splay fault to be spontaneous. I define the slip weakening parameter and also initial traction (resulting from the previous earthquake) but I see this notification when it is running :
WARNING: No initial state given for friction model ‘Slip weakening’. Using default value of zero.
What does it mean? The simulation itself is running well. I haven’t checked the result because the simulation hasn’t finished.
Thank you in advance.
Alvina KK
This just means that the initial slip value used in the friction model (relative to the slip weakening parameter, Do)
is assumed to be zero. This is the typical case for slip-weakening friction. This is in contrast to rate and state friction; for rate and state friction one almost always specifies an initial value for the state variable, theta.
Dear @baagaard,
Ok, I understand.
One more question. Is it possible when we run 2 earthquakes (with different rupture area and there is a time gap between the two earthquakes) and each earthquake uses its own slip model. Then at the end of the simulation, the slip for the second earthquake will have some differences?
For prescribed slip on a fault with multiple ruptures, the slip will be the sum across all ruptures. You can compare the sum of the final_slip_RUPTURENAME output info fields and compare it against the slip output data field. They should agree.