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Comparison between coupled and uncoupled consolidation analysis of a rigid sphere in a porous elastic infinite space

Authors :
Osman, Ashraf S.
Source :
Journal of Engineering Mechanics. August, 2010, Vol. 136 Issue 8, p1059, 6 p.
Publication Year :
2010

Abstract

Linear consolidation analyses are usually treated either by means of Terzaghi-Rendulic uncoupled theory or Blot'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%. DOI: 10.1061/(ASCE)EM.1943-7889.0000149 CE Database subject headings: Elasticity; Poroelasticity; Spheres; Deformation; Coupling. Author keywords: Elastic analysis; Poroelasticity; Spheres; Deformation.

Details

Language :
English
ISSN :
07339399
Volume :
136
Issue :
8
Database :
Gale General OneFile
Journal :
Journal of Engineering Mechanics
Publication Type :
Academic Journal
Accession number :
edsgcl.233407250