From standard to fractional structural visco-elastodynamics: Application to seismic site response

Germoso, C. and Fraile, A. and Alarcón Álvarez, Enrique and Aguado, J.V. and Chinesta, Francisco (2017). From standard to fractional structural visco-elastodynamics: Application to seismic site response. "Physics and Chemestry of the Earth", v. 98 ; pp. 3-15. ISSN 1474-7065. https://doi.org/10.1016/j.pce.2016.01.005.

Description

Title: From standard to fractional structural visco-elastodynamics: Application to seismic site response
Author/s:
  • Germoso, C.
  • Fraile, A.
  • Alarcón Álvarez, Enrique
  • Aguado, J.V.
  • Chinesta, Francisco
Item Type: Article
Título de Revista/Publicación: Physics and Chemestry of the Earth
Date: April 2017
Volume: 98
Subjects:
Freetext Keywords: Elastodynamics; Generalized Kelvin-Voigt model; Fractional derivatives; Seismic site analysis; Soil mechanics
Faculty: E.T.S.I. Industriales (UPM)
Department: Mecánica Estructural y Construcciones Industriales [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper revisits visco-elastodynamics from its most standard formulation to some more advanced description involving frequency-dependent damping (or viscosity), analyzing the effects of considering fractional derivatives for representing such viscous contributions. We will prove that such a choice results in richer models that can accommodate different constraints related to the dissipated power, response amplitude and phase angle. Moreover, the use of fractional derivatives allows to accommodate in parallel, within a generalized Kelvin-Voigt analog, many dashpots that contribute to increase the modeling flexibility for describing experimental findings. Finally, the effect of fractional damping in dynamic soil models will be addressed within a seismic site analyses framework.

More information

Item ID: 46113
DC Identifier: http://oa.upm.es/46113/
OAI Identifier: oai:oa.upm.es:46113
DOI: 10.1016/j.pce.2016.01.005
Official URL: http://www.sciencedirect.com/science/article/pii/S1474706516000085
Deposited by: Biblioteca ETSI Industriales
Deposited on: 06 Jun 2017 07:18
Last Modified: 01 May 2019 22:30
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