Bulletin of the Seismological Society of America; June 1983; v. 73; no. 3;
p. 749-763
© 1983 Seismological Society of America
Fundamentals of generalized rigidity matrices for multi-layered media
MAURICE A. BIOT
ROYAL ACADEMY OF BELGIUM, 1000 BRUSSELS, Belgium
Abstract
Rigidity matrices for multi-layered media are derived for isotropic and orthotropic layers by a simple direct procedure which brings to light their fundamental mathematical structure. The method was introduced many years ago by the author in the more general context of dynamics and stability of multi-layers under initial stress. Other earlier results are also briefly recalled such as the derivation of three-dimensional solutions from plane strain modes, the effect of initial stresses, gravity, and couple stresses for thinly laminated layers. The extension of the same mathematical structure and symmetry to viscoelastic media is valid as a consequence of fundamental principles in linear irreversible thermodynamics.
Copyright © 2009 by Seismological Society of America