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Intra-extrafibrillar mixture formulation of soft charged tissues

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Show simple item record Huyghe, Jacques M. 2018-09-21T14:17:15Z 2018-09-21T14:17:15Z 1999
dc.description peer-reviewed en_US
dc.description.abstract The volume of the intrafibrillar water space - i.e. the water contained inside the collagen fibers - is a key parameter that is relevant to concepts of connective tissue structure and function. Because existing theories of finite deformation of cartilaginous tissues do not distinguish between intra- and extrafibrillar water, we derive a chemo-electro-mechanical formulation of quasi-static finite deformation including such distinctions. The model features a porous solid saturated with two fluid compartments, in which an arbitrary number of solutes are dissolved. Each fluid compartment has its own fixed charge density. Incompressible deformation is assumed. Each fluid compartment is assumed to be locally electroneutral. Balance laws are derived for each constituent and for the mixture as a whole. A Lagrangian form of the second law of thermodynamics for incompressible porous media is used to derive the constitutive restrictions of the medium. The material properties are shown to be contained in one strain energy function and a matrix of friction tensors. The formulation is consistent with the experimental finding (Maroudas et al., 1991) that the intrafibrillar water content is regulated by the osmotic pressure gradient between the extra- and intrafibriJIar compartments. en_US
dc.language.iso eng en_US
dc.publisher Polish Society of Theoretical and Applied Mechanics en_US
dc.relation.ispartofseries Journal of Theoretical and Applied Mechanics;37 (3), pp. 519-536
dc.subject mixture theory en_US
dc.subject porous media en_US
dc.subject cartilage en_US
dc.subject intervertebral disc en_US
dc.title Intra-extrafibrillar mixture formulation of soft charged tissues en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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