000000837 001__ 837
000000837 005__ 20141118153514.0
000000837 04107 $$acze
000000837 046__ $$k2002-05-13
000000837 100__ $$aHlaváček, Miroslav
000000837 24500 $$aSYNOVIAL FLUID FILTRATION BY ARTICULAR CARTILAGE UNDER CYCLICAL LOADING
000000837 24630 $$n8.$$pEngineering Mechanics 2002
000000837 260__ $$bInstitute of Mechanics and Solids, FME, TU Brno
000000837 506__ $$arestricted
000000837 520__ $$2cze$$aAbstrakt: The synovial film filtration by articular cartilage in the human ankle joint loaded by a cyclical loading (similar to that in walking) is analyzed. The cartilage matrix is elastic, transversely isotropic and the elastic moduli in compression and tension are depth-dependent. The effect of sliding is not considered and the articular surfaces are assumed congruent. This simplification leads to a one-dimensional (time-dependent) problem. The calculation shows that, within each step, the synovial fluid turns into a thin protecting gel layer that is diluted back again into the fluid. For the normal values of the matrix permeability and of the elastic moduli, the gelfilm thickness slowly diminishes with time, after 120 steps being still about one tenth of micrometer thick. The increase of permeability by one order, as with the arthritic joint, however, depletes the protecting gel film after several steps and the surfaces get into the contact.   
000000837 520__ $$2eng$$aAbstract: The synovial film filtration by articular cartilage in the human ankle joint loaded by a cyclical loading (similar to that in walking) is analyzed. The cartilage matrix is elastic, transversely isotropic and the elastic moduli in compression and tension are depth-dependent. The effect of sliding is not considered and the articular surfaces are assumed congruent. This simplification leads to a one-dimensional (time-dependent) problem. The calculation shows that, within each step, the synovial fluid turns into a thin protecting gel layer that is diluted back again into the fluid. For the normal values of the matrix permeability and of the elastic moduli, the gelfilm thickness slowly diminishes with time, after 120 steps being still about one tenth of micrometer thick. The increase of permeability by one order, as with the arthritic joint, however, depletes the protecting gel film after several steps and the surfaces get into the contact.   
000000837 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000000837 7112_ $$aEngineering Mechanics 2002$$cSvratka (CZ)$$d2002-05-13 / 2002-05-16$$gEM2002
000000837 720__ $$aHlaváček, Miroslav
000000837 8560_ $$ffischerc@itam.cas.cz
000000837 8564_ $$s225365$$uhttp://invenio.itam.cas.cz/record/837/files/Hlavacek.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000000837 962__ $$r451
000000837 980__ $$aPAPER