Stabilized single-point 4-node quadrilateral element for dynamic analysis of fluid saturated porous media

被引：59

作者：

McGann, Christopher R. ^{[1
]}

Arduino, Pedro ^{[1
]}

Mackenzie-Helnwein, Peter ^{[1
]}

机构：

[1] Univ Washington, Dept Civil & Environm Engn, Seattle, WA 98195 USA

来源：

ACTA GEOTECHNICA | 2012年 / 7卷 / 04期

关键词：

Hourglass stabilization; Locking-free; Reduced integration; Saturated soils; ASSUMED STRAIN STABILIZATION; FINITE-ELEMENTS; FORMULATION; ELASTOPLASTICITY; DEFORMATION; PROPAGATION; BEHAVIOR;

D O I：

10.1007/s11440-012-0168-5

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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.

引用

页码：297 / 311

页数：15

共 45 条

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