Style peri/pmb style implements the Peridynamic bond-based prototype microelastic brittle (PMB) model, which can be used to model materials -at the mesoscopic or macroscopic scale. The implementation of +at the mesoscopic or macroscopic scale. The canonical paper on +Peridynamics is (Silling). The implementation of Peridynamics in LAMMPS is described in (Parks). Also see the PDLAMMPS user guide for more -details about this particular potential. +details about this particular potential and using it in LAMMPS.
The following coefficients must be defined for each pair of atom types via the pair_coeff command as in the examples @@ -36,15 +37,17 @@ above, or in the data file or restart files read by the read_data or read_restart commands, or by mixing as described below:
-K is the spring constant for Peridynamic bonds, the horizon is a -cutoff distance for truncating interactions, and s00 and alpha are -used as a bond breaking criteria. See the users guide for more -details. +
C is the effectively a spring constant for Peridynamic bonds, the +horizon is a cutoff distance for truncating interactions, and s00 and +alpha are used as a bond breaking criteria. The units of c are such +that c/distance = stiffness/volume^2, where stiffness is +energy/distance^2 and volume is distance^3. See the users guide for +more details.
(Parks) Parks, Lehoucq, Plimpton, Silling, to appear in Comp Phys Comm, (2008).
+ + +(Silling) Silling, J Mech Phys Solids, 48, 175-209 (2000). +