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

被引：61
|
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
收藏
页码：297 / 311
页数：15
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