is there the possibility of Arc_length method in moose ?

[Ttw0626]

Dear Moose's developers,

I thought I am not deep familiar with moose,

1. I wanna ask a short question, is there a specific module for Arc_length method instead of disp-control solver?

if yes, could I study some examples ?

It is important for unloading process in damage.

Thanks,
TAN

[jedbrown]

This feature is coming in the next PETSc release.
https://gitlab.com/petsc/petsc/-/merge_requests/7502

[Ttw0626]

hi, jed, Thanks for your reply. I will go deep into it.

tianwen.

[Ttw0626]

@jedbrown hi. jed. Here is a updated problem.

Is there any "input" file example for using the Arc-Length method from PETSc within MOOSE ? Thanks.

I tried some, I just changed the "SNES" solver in MOOSE input file to NEWTONAL, but, the PETSc error occured.
what's I should do for this interface ?

Thanks, looking forward to your reply.

tianwen

[jedbrown]

The example is src/snes/tutorials/ex16.c for that MR. If you have an example, we could test it.