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A macroscopic constitutive law for elasto-plastic multilayered material with imperfect interface: application to reinforced soils

type de publication      article dans une revue internationale avec comité de lecture
date de publication 2003
auteur(s) Nejad Ensam M.; Shahrour Isam
journal (abréviation) Computers and Géotechnics (Computers and Geotechnics)
volume (numéro) 30 (4)
  
pages 339 – 345
résumé This paper concerns the formulation of a macroscopic constitutive relation for multilayered materials with imperfect interface, which allows taking into consideration the possibility of slipping at the interface of constituents. The model is developed using the homogenization approach assuming elasto-plastic behavior for constituents. The paper is composed of three parts. The first one presents the mathematical formulation of the macroscopic constitutive relation. The second describes the numerical implementation of this relation in a finite element program. The last part concerns the use of this constitutive relation to study the influence of the interface properties on the behavior of reinforced soils. Results of numerical simulations show the necessity of the consideration of slipping at the soil-reinforcement interface in the calculation of reinforced earth structures.
mots clés Elasto-plastic; Finite element; Homogenization; Interface; Macroscopic; Multilayered; Reinforced eart; Slipping
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