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
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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.
Steve