Syntax:
bond_style harmonic/shift/cut
Examples:
bond_style harmonic/shift/cut bond_coeff 5 10.0 0.5 1.0
Description:
The harmonic/shift/cut bond style is a shifted harmonic bond that uses the potential
where r0 is the equilibrium bond distance, and rc the critical distance. The bond potential is zero for distances r > rc. The potential is -Umin at r0 and zero at rc. The spring constant is k = Umin / [ 2 (r0-rc)^2].
The following coefficients must be defined for each bond type via the bond_coeff command as in the example above, or in the data file or restart files read by the read_data or read_restart commands:
Restrictions:
This bond style can only be used if LAMMPS was built with the USER-MISC package. See the Making LAMMPS section for more info on packages.
Related commands:
bond_coeff, delete_bonds, bond_harmonic, bond_harmonicshift
Default: none