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An Unstructured Finite Volume Approach for Structural Dynamics in Response to Fluid Motions.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A new cell-vortex unstructured finite volume method for structural dynamics is assessed for simulations of structural dynamics in response to fluid motions. A robust implicit dual-time stepping method is employed to obtain time accurate solutions. The resulting system of algebraic equations is matrix-free and allows solid elements to include structure thickness, inertia, and structural stresses for accurate predictions of structural responses and stress distributions. The method is coupled with a fluid dynamics solver for fluid-structure interaction, providing a viable alternative to the finite element method for struc...
Source: Computers and Structures - April 1, 2008 Category: Bioinformatics Authors: Xia G, Lin CL Tags: Comput Struct Source Type: journals

Finite Element Simulation of Elastohydrodynamic Lubrication of Soft Biological Tissues.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In the serosal cavities (e.g. pleural, pericardial) soft tissues slide against each other, lubricated by thin fluid. We used rotational devices to study the tribology of such tissues, which appear to exhibit mixed and hydrodynamic lubrication. To explore mechanism, we modeled the interaction of fluid and soft material in 3D using a simple cylindrical geometry with an uneven solid-fluid interface in rotation. Deformation of the solid, frictional force, and fluid thickness are presented as a function of applied rotational velocity, applied normal load and material properties. The results suggest that the deformation caus...
Source: Computers and Structures - June 1, 2007 Category: Bioinformatics Authors: Moghani T, Butler JP, Lin JL, Loring SH Tags: Comput Struct Source Type: journals