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

作者：McGann Christopher R^*; Arduino Pedro; Mackenzie Helnwein Peter

来源：Computers and Geotechnics, 2015, 66: 126-141.

DOI：10.1016/j.compgeo.2015.01.002

• Hourglass stabilization
• Reduced integration
• Saturated soils
• Finite element method

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.

• 出版日期2015-5