[petsc-users] Solvers for phase field fracture

Avtar Singh er.bhullersingh at gmail.com
Thu Jan 4 00:12:29 CST 2018

Hello Petsc Users,

I am solving a fortran framework to simulate phase-field fracture problem.
Upto the failure point the code is working fine. But as the crack-phase
starts to propagate, there is abrupt changes in the Stiffness Matrix, so
determinant becomes nearly equal to zero.  Hence, the code crashes.

I tried with mumps package with pc lu. Also tried, superlu, gmres and
fgmres with jacobi, bjacobi, lu. But the problem still persist.

Can anyone suggest, Which solver and preconditioner should i use?

Thank you

Avtar Singh
Research Scholar
Multiscale Mechanics and Multiphysics Lab
IIT Roorkee, Roorkee
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20180104/83d948d0/attachment.html>

More information about the petsc-users mailing list