[lammps-users] Need some helps about modeling in LAMMPS using FENE bond

Dear Sir,
I wrote a input script using FENE potential for polymer. But after running in LAMMPS, it shows warning Bond too long. Error Bad FENE bond. Please help me about the matter. How, I can overcome the problem.

Sincerely yours
Dr. Sankar


FENE bonds blow up when they stretch too far. The real
question is why they are stretching too far, as it indicates
you have a bad model. Could be too large a timestep, big
overlaps, bad initial config, etc.