[gmx-users] about FENE potential

[aa qq]

Dear users:
 
When I use FENE (finitely extensible linear elastic potential) to simulate polymers, I always meet a question, that
 
the distance molecular distance is always beyond the limited value(R0=1.5 or 2.0),
then the force will be infinte.
 
In this case how to control?
 
Thanks for your help
 
Shufang Fu
 
shufangfu at yahoo.com 

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