Efficient PGD-based dynamic calculation of non-linear soil behavior

Germoso Núñez, Claudia del Carmen and Aguado, José V. and Fraile de Lerma, Alberto and Alarcón Álvarez, Enrique and Chinesta, Francisco (2015). Efficient PGD-based dynamic calculation of non-linear soil behavior. "Comptes Rendus Mecanique", v. 344 (n. 1); pp. 24-41. ISSN 1631-0721. https://doi.org/10.1016/j.crme.2015.09.002.

Description

Title: Efficient PGD-based dynamic calculation of non-linear soil behavior
Author/s:
  • Germoso Núñez, Claudia del Carmen
  • Aguado, José V.
  • Fraile de Lerma, Alberto
  • Alarcón Álvarez, Enrique
  • Chinesta, Francisco
Item Type: Article
Título de Revista/Publicación: Comptes Rendus Mecanique
Date: 2015
Volume: 344
Subjects:
Freetext Keywords: Proper Generalized Decomposition, Non-linear soil behavior, Harmonic analysis, Dynamics
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Non-linear behavior of soils during a seismic event has a predominant role in current site response analysis. Soil response analysis consistently indicates that the stress-strain relationship of soils is nonlinear and shows hysteresis. When focusing in forced response simulations, time integrations based on modal analysis are widely considered, however parametric analysis, non-linear behavior and complex damping functions make difficult the online use of standard discretization strategies, e.g. those based on the use of finite element. In this paper we propose a new harmonic analysis formulation, able to address forced response simulation of soils exhibiting their characteristic nonlinear behavior. The solution can be evaluated in real-time from the offline construction of a parametric solution of the associated linearized problem within the Proper Generalized Decomposition framework.

More information

Item ID: 38294
DC Identifier: http://oa.upm.es/38294/
OAI Identifier: oai:oa.upm.es:38294
DOI: 10.1016/j.crme.2015.09.002
Official URL: http://www.sciencedirect.com/science/article/pii/S1631072115001126
Deposited by: Memoria Investigacion
Deposited on: 21 Jan 2016 18:33
Last Modified: 01 Feb 2017 23:30
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