FENE

This article is about finitely extensible nonlinear elastic. For other uses, see Fene.

An example of multi-bead FENE model

FENE stands for the finitely extensible nonlinear elastic model of a long-chained polymer. It simplifies the chain of monomers by connecting a sequence of beads with nonlinear springs. The spring force law is governed by inverse Langevin function or approximated by the Warner's relationship

${\textbf {F}}_{i}={\frac {H{\textbf {R}}_{i}}{1-(R_{i}/L_{max})^{2}}}$

Where $R_{i}=|{\textbf {R}}_{i}|$ and H is the spring constant.

Total stretching force on ith bead can be written as: ${\textbf {F}}_{i}-{\textbf {F}}_{i-1}$.

See also

• FENE-P

References

• Dynamics of dissolved polymer chains in isotropic turbulence

External links

• QPolymer: an open source (for Mac OS X) FENE model Brownian dynamics simulation software