Dispersive transverse waves for a strain-limiting continuum model.

Autor: Erbay, HA, Rajagopal, KR, Saccomandi, G, Şengül, Y
Předmět:
Zdroj: Mathematics & Mechanics of Solids; Jun2024, Vol. 29 Issue 6, p1216-1227, 12p
Abstrakt: It is well known that propagation of waves in homogeneous linearized elastic materials of infinite extent is not dispersive. Motivated by the work of Rubin, Rosenau, and Gottlieb, we develop a generalized continuum model for the response of strain-limiting materials that are dispersive. Our approach is based on both a direct inclusion of Rivlin–Ericksen tensors in the constitutive relations and writing the linearized strain in terms of the stress. As a result, we derive two coupled generalized improved Boussinesq-type equations in the stress components for the propagation of pure transverse waves. We investigate the traveling wave solutions of the generalized Boussinesq-type equations and show that the resulting ordinary differential equations form a Hamiltonian system. Linearly and circularly polarized cases are also investigated. In the case of unidirectional propagation, we show that the propagation of small-but-finite amplitude long waves is governed by the complex Korteweg–de Vries (KdV) equation. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index