A stabilized single-point finite element formulation for three-dimensional dynamic analysis of saturated soils

A low-order single-point quadrature finite element suitable of dynamic 3D analysis of saturated soils is presented. The new element uses a u-p formulation to consider the interaction of the pore fluid and solid skeleton. An hourglass stabilization scheme facilitates single-point integration for the...

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Bibliographic Details
Published inComputers and geotechnics Vol. 66; pp. 126 - 141
Main Authors McGann, Christopher R., Arduino, Pedro, Mackenzie-Helnwein, Peter
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2015
Subjects
Dynamic tests
Dynamics
Finite element method
Geotechnics
Hourglass stabilization
Mathematical analysis
Mathematical models
Reduced integration
Saturated soils
Stabilization
Three dimensional
Finite element method
Reduced integration
Saturated soils
Hourglass stabilization
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Summary:A low-order single-point quadrature finite element suitable of dynamic 3D analysis of saturated soils is presented. The new element uses a u-p formulation to consider the interaction of the pore fluid and solid skeleton. An hourglass stabilization scheme facilitates single-point integration for the solid phase terms, and non-residual pressure field stabilization is used to facilitate equal-order interpolation for the two phases and improve element behavior in the incompressible–impermeable limit. Several numerical examples are presented to verify the new element formulation and demonstrate its response in a geotechnical application.
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ISSN:0266-352X
1873-7633
DOI:10.1016/j.compgeo.2015.01.002