Ov. Gendelman et Li. Manevitch, LINEAR AND NONLINEAR EXCITATIONS IN A POLYETHYLENE CRYSTAL, 2(A) - NONHOMOGENEOUS STATES AND NONLINEAR EXCITATIONS, Macromolecular theory and simulations, 7(6), 1998, pp. 591-598
The effect of nonlinearity on dynamics and the appearance of nonhomoge
neous equilibrium states in a polyethylene crystal are analyzed. The r
ole of different inputs into the nonlinearity of potentials of interac
tion is investigated theoretically by means of approximate equations.
The solutions of these equations which describe equilibrium cracks, do
main walls, bivacancies and vacancies are presented. The energies and
elastic fields of these structural defects are calculated.