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Stabilized single-point 4-node quadrilateral element for dynamic analysis of fluid saturated porous media
Abstract An accurate and efficient low-order quadrilateral mixed u–p element suitable for dynamic analysis of fluid saturated porous media is presented. The element uses physical hourglass stabilization to facilitate single-point integration for the solid phase, and non-residual stabilization of the fluid phase to circumvent instability in the incompressible-impermeable limit due to the use of equal-order interpolation for the displacement and pressure fields. Element behavior is verified and demonstrated through several numerical examples.
Stabilized single-point 4-node quadrilateral element for dynamic analysis of fluid saturated porous media
Abstract An accurate and efficient low-order quadrilateral mixed u–p element suitable for dynamic analysis of fluid saturated porous media is presented. The element uses physical hourglass stabilization to facilitate single-point integration for the solid phase, and non-residual stabilization of the fluid phase to circumvent instability in the incompressible-impermeable limit due to the use of equal-order interpolation for the displacement and pressure fields. Element behavior is verified and demonstrated through several numerical examples.
Stabilized single-point 4-node quadrilateral element for dynamic analysis of fluid saturated porous media
McGann, Christopher R. (Autor:in) / Arduino, Pedro (Autor:in) / Mackenzie-Helnwein, Peter (Autor:in)
Acta Geotechnica ; 7 ; 297-311
07.06.2012
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Hourglass stabilization , Locking-free , Reduced integration , Saturated soils Engineering , Geoengineering, Foundations, Hydraulics , Continuum Mechanics and Mechanics of Materials , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics , Structural Mechanics
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Mixed finite element method for dynamic analysis of fluid-saturated porous media
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