The mixture theory of fluid-saturated porous media involves three types of couplings: mechanical, through stress/strain laws, viscous, through Darcy's law, and inertial. Viscous coupling is not involved in the analysis of acceleration waves: for elastic-plastic fluid-saturated porous media it has been shown that complex wave speeds ("flutter instability") or stationary discontinuities ("strain localization") may occur. On the other hand, we show here that the effect of inertial coupling on the elastic-plastic wave-speeds is mainly quantitative and not qualitative: the basic structure of the eigenvalue problem leading to the elastic-plastic wave-speeds remains unchanged.

(1998). On the effects of inertial coupling on the wave-speeds of elastic-plastic fluid-saturated porous media . Retrieved from http://hdl.handle.net/10446/58141

On the effects of inertial coupling on the wave-speeds of elastic-plastic fluid-saturated porous media

RIZZI, Egidio
1998-01-01

Abstract

The mixture theory of fluid-saturated porous media involves three types of couplings: mechanical, through stress/strain laws, viscous, through Darcy's law, and inertial. Viscous coupling is not involved in the analysis of acceleration waves: for elastic-plastic fluid-saturated porous media it has been shown that complex wave speeds ("flutter instability") or stationary discontinuities ("strain localization") may occur. On the other hand, we show here that the effect of inertial coupling on the elastic-plastic wave-speeds is mainly quantitative and not qualitative: the basic structure of the eigenvalue problem leading to the elastic-plastic wave-speeds remains unchanged.
1998
Loret, B.; Rizzi, Egidio
File allegato/i alla scheda:
File Dimensione del file Formato  
LoretRizziMISChapter4-1998total.pdf

Solo gestori di archivio

Versione: publisher's version - versione editoriale
Licenza: Licenza default Aisberg
Dimensione del file 9.7 MB
Formato Adobe PDF
9.7 MB Adobe PDF   Visualizza/Apri
Pubblicazioni consigliate

Aisberg ©2008 Servizi bibliotecari, Università degli studi di Bergamo | Terms of use/Condizioni di utilizzo

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/58141
Citazioni
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact