MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Computers and Structures' source. Sat, 10 Oct 2009 19:30:02 +0100 http://www.medworm.com/index.php?rid=1820156&cid=s_38112_79_f&fid=38112&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18496602%26dopt%3DAbstract Authors: Xia G, Lin CL 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 structural dynamics calculations. A mesh sensitivity test indicates that the finite volume method is at least of second-order accuracy. The method is va... Computers and Structures journals http://www.medworm.com/rss/comments.php?id=1820156 Tue, 01 Apr 2008 04:00:00 +0100 1820156 http://www.medworm.com/index.php?rid=1820157&cid=s_38112_79_f&fid=38112&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D18037975%26dopt%3DAbstract Authors: Moghani T, Butler JP, Lin JL, Loring SH 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 caused by hydrodynamic pressure leads to load-supporting behavior. PMID: 18037975 [PubMed - as supplied by publisher] (So... Computers and Structures journals http://www.medworm.com/rss/comments.php?id=1820157 Fri, 01 Jun 2007 04:00:00 +0100 1820157