Steel and Composite Structures

Volume 4, Number 2, 2004, pages 133-147

DOI: 10.12989/scs.2004.4.2.133

Asymptotic analysis of Mohr-Coulomb and Drucker-Prager soft thin layers

F. Lebon and S. Ronel-Idrissi

Abstract

This paper deals with the asymptotic analysis of Mohr-Coulomb and Drucker-Prager soft thin layers bonded with elastic solids. In the first part, a mathematical analysis shows how to obtain an interface law that replaces mechanically and geometrically the thin layer. This law is strongly non-linear and couples microscopic and macroscopic scales. In the second part of the paper, the microscopic terms are quantified numerically, and it is shown that they can be neglected.

Key Words

asymptotic studies; elasto-plasticity; non-associated laws; interface laws; finite elements.

Address

F. Lebon and S. Ronel-Idrissi; Laboratoire Mecanique Matriaux Structures, Universita Claude Bernard Lyon 1, 82 Bd Niels Bohr, Domaine Scientifique de la Doua, 69622 Villeurbanne Cedex, France