A CONTRIBUTION TO DYNAMICS OF POLYATOMIC LATTICES

Jowita Rychlewska (1) , Jolanta Szymczyk (1) , Czeslaw Wozniak (1)

1 Institute of Mathematics and Computer Sciences, Czestochowa University of Technology

Using the concept of internal degrees of freedom a new finite difference formulation of polyatomic lattice dynamics is proposed. A transition from the nonlocal equations of motion to the partly local and local ones as well as the possibility of reduction of internal degrees of freedom are shown.

Domaines: Mécanique [physics]

Jowita Rychlewska, Jolanta Szymczyk, Czeslaw Wozniak. A CONTRIBUTION TO DYNAMICS OF POLYATOMIC LATTICES. Journal of Theoretical and Applied Mechanics, 1999, 37 (4), pp.799-807. ⟨hal-01118974⟩