A stabilized single-point finite element formulation for three-dimensional dynamic analysis of saturated soils. (May 2015)

• Record Type: Journal Article
• Authors: McGann, Christopher R.; Arduino, Pedro; Mackenzie-Helnwein, Peter
• Is Part Of: Computers and geotechnics. Volume 66(2015)
• Page Start: 126
• Page End: 141
• Publication Date: 2015-05
• Subjects: Hourglass stabilization -- Reduced integration -- Saturated soils -- Finite element method; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2015.01.002
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: 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.