Nonlinear Hysteretic Dynamic Response of Soil Systems
| Autor: | Jean-Herve Prevost, Ahmed-Waeil M. Elgamal, Ahmed M. Abdel-Ghaffar |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
business.industry
Mechanical Engineering Mathematical analysis Constitutive equation Equations of motion Basis function Structural engineering Dynamic load testing Finite element method Physics::Geophysics Nonlinear system Mechanics of Materials Soil structure interaction Galerkin method business Mathematics |
| Zdroj: | Journal of Engineering Mechanics. 111:696-713 |
| ISSN: | 1943-7889 0733-9399 |
| DOI: | 10.1061/(asce)0733-9399(1985)111:5(696) |
| Popis: | 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 multi-surface 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|