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Comparison between coupled and uncoupled consolidation analysis of a rigid sphere in a porous elastic infinite space / Ashraf S. Osman in Journal of engineering mechanics, Vol. 136 N° 8 (Août 2010) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 136 N° 8 (Août 2010) . - pp. 1059-1064 Titre : Comparison between coupled and uncoupled consolidation analysis of a rigid sphere in a porous elastic infinite space Type de document : texte imprimé Auteurs : Ashraf S. Osman, Auteur Article en page(s) : pp. 1059-1064 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Elasticity  Poroelasticity  Spheres  Deformation  Coupling. Résumé : Linear consolidation analyses are usually treated either by means of Terzaghi-Rendulic uncoupled theory or Biot's consolidation theory. In this note, the problem of consolidation displacements around an axially loaded sphere was considered. It is demonstrated that both the uncoupled analysis and the coupled analysis give the same governing equation for pore fluid pressure dissipation with time. A simplified procedure for deriving transient strain components is illustrated. A general solution for time-dependent displacements is obtained using uncoupled consolidation analysis. Close agreement is evident between the new approximate uncoupled analysis solution and the existing coupled analysis solution with a maximum error of less than 0.5%. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...] [article] Comparison between coupled and uncoupled consolidation analysis of a rigid sphere in a porous elastic infinite space [texte imprimé] / Ashraf S. Osman, Auteur . - pp. 1059-1064. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 136 N° 8 (Août 2010) . - pp. 1059-1064 Mots-clés : Elasticity  Poroelasticity  Spheres  Deformation  Coupling. Résumé : Linear consolidation analyses are usually treated either by means of Terzaghi-Rendulic uncoupled theory or Biot's consolidation theory. In this note, the problem of consolidation displacements around an axially loaded sphere was considered. It is demonstrated that both the uncoupled analysis and the coupled analysis give the same governing equation for pore fluid pressure dissipation with time. A simplified procedure for deriving transient strain components is illustrated. A general solution for time-dependent displacements is obtained using uncoupled consolidation analysis. Close agreement is evident between the new approximate uncoupled analysis solution and the existing coupled analysis solution with a maximum error of less than 0.5%. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000 [...]