Nonlinear hysteretic dynamic response of soil systems

Jean Hérve Prévost, Ahmed M. Abdel-Ghaffar, Ahmed Waeil M. Elgamal

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A simplified analysis procedure for the nonlinear hysteretic dynamic response of soil or structural systems, or both, is presented. The method is based on a Galerkin formulation of the equations of motion in which the solution is expanded using basis functions defined over the spatial domain occupied by the soil system. The basis functions are selected as the normal eigenmodes of the linearized problem. The hysteretic stress-strain behavior is modeled by using elastoplastic constitutive equations based on multisurface kinematic plasticity theory. Accuracy and versatility of the technique are demonstrated by applying it to analyze the nonlinear dynamic response of an earth dam. The dam is modeled as a one-dimensional hysteretic shear wedge. Parametric studies assessing the influence of the nonlinearities on the response are presented. Finally, comparisons are made with results obtained through a more elaborate finite element representation of the dam.

Original languageEnglish (US)
Pages (from-to)696-713
Number of pages18
JournalJournal of Engineering Mechanics
Volume111
Issue number5
DOIs
StatePublished - May 1985

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering

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