1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/* -*- c++ -*- ----------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
certain rights in this software. This software is distributed under
the GNU General Public License.
See the README file in the top-level LAMMPS directory.
------------------------------------------------------------------------- */
#ifdef BOND_CLASS
BondStyle(fene,BondFENE)
#else
#ifndef LMP_BOND_FENE_H
#define LMP_BOND_FENE_H
#include "bond.h"
namespace LAMMPS_NS {
class BondFENE : public Bond {
public:
BondFENE(class LAMMPS *);
virtual ~BondFENE();
virtual void compute(int, int);
virtual void coeff(int, char **);
void init_style();
double equilibrium_distance(int);
virtual void write_restart(FILE *);
void read_restart(FILE *);
void write_data(FILE *);
double single(int, double, int, int, double &);
protected:
double TWO_1_3;
double *k,*r0,*epsilon,*sigma;
virtual void allocate();
};
}
#endif
#endif
/* ERROR/WARNING messages:
W: FENE bond too long: %ld %d %d %g
A FENE bond has stretched dangerously far. It's interaction strength
will be truncated to attempt to prevent the bond from blowing up.
E: Bad FENE bond
Two atoms in a FENE bond have become so far apart that the bond cannot
be computed.
E: Incorrect args for bond coefficients
Self-explanatory. Check the input script or data file.
W: Use special bonds = 0,1,1 with bond style fene
Most FENE models need this setting for the special_bonds command.
W: FENE bond too long: %ld %g
A FENE bond has stretched dangerously far. It's interaction strength
will be truncated to attempt to prevent the bond from blowing up.
*/