Evaluation and Validation of the Princeton University Effective Stress Model.
Abstract
An efficient finite element procedure to analyze transient phenomena in dry and/or fluid-saturated porous media is presented. The saturated porous medium is modeled as a twO-phase system consisting of a solid and a fluid phase. Time integration of the resulting semidiscrete finite element equations is performed by an implicit-explicit algorithm. In order to remove the time step size restriction associated with the presence of the stiff fluid in the mixture, the fluid contribution to the equations of motion is always treated implicitly. The procedure allows an optimal selection of the time step size independently of the fluid. Depending upon the particular intended applications (e.g., seismic, blast loading), the fluid may be assumed incompressible or compressible. Accuracy and versatility of the proposed procedure are demonstrated by applying it consolidation tests performed in centrifuges.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1986
- Accession Number
- ADA176207
Entities
People
- J. H. Prevost
- John M. Ferritto
- Robert J. Slyh
Organizations
- Naval Facilities Engineering Service Center