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contributor authorThomas Nagel
contributor authorDaniel J. Kelly
date accessioned2017-05-09T00:36:26Z
date available2017-05-09T00:36:26Z
date copyrightNovember, 2010
date issued2010
identifier issn0148-0731
identifier otherJBENDY-27177#114506_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/142526
description abstractConstitutive models facilitate investigation into load bearing mechanisms of biological tissues and may aid attempts to engineer tissue replacements. In soft tissue models, a commonly made assumption is that collagen fibers can only bear tensile loads. Previous computational studies have demonstrated that radially aligned fibers stiffen a material in unconfined compression most by limiting lateral expansion while vertically aligned fibers buckle under the compressive loads. In this short communication, we show that in conjunction with swelling, these intuitive statements can be violated at small strains. Under such conditions, a tissue with fibers aligned parallel to the direction of load initially provides the greatest resistance to compression. The results are further put into the context of a Benninghoff architecture for articular cartilage. The predictions of this computational study demonstrate the effects of varying fiber orientations and an initial tare strain on the apparent material parameters obtained from unconfined compression tests of charged tissues.
publisherThe American Society of Mechanical Engineers (ASME)
titleThe Influence of Fiber Orientation on the Equilibrium Properties of Neutral and Charged Biphasic Tissues
typeJournal Paper
journal volume132
journal issue11
journal titleJournal of Biomechanical Engineering
identifier doi10.1115/1.4002589
journal fristpage114506
identifier eissn1528-8951
keywordsFibers
keywordsStress
keywordsEquilibrium (Physics)
keywordsBiological tissues
keywordsCompression
keywordsTension
keywordsCartilage AND Geometry
treeJournal of Biomechanical Engineering:;2010:;volume( 132 ):;issue: 011
contenttypeFulltext


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