Predicting Articular Cartilage Behavior with a Non-Linear Microstructural Model
نویسندگان
چکیده
منابع مشابه
Predicting Articular Cartilage Behavior with a Non-Linear Microstructural Model
We report here on a non-linear poroelastic model for the mechanical response of collagenous soft tissues such as articular cartilage. The tissue consists of a porous, fibril-reinforced, hyperelastic solid, saturated with an incompressible fluid, and Darcy's law governs solid-fluid interaction. The solid matrix is characterized by the isotropic hyperfoam strain energy function and its permeabili...
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INTRODUCTION the deep layers because they are softer, a result that is Articular cartilage is a biological composite material made of consistent with experimental evidence [5]. a proteoglycan matrix, and of chondrocyte and collagen fibre inclusions. We have modelled articular cartilage by means of a Implementation of this model into a Finite Element code linearly elastic Transversely Isotropic,...
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Hydrated soft tissues, such as articular cartilage, are often modeled as biphasic systems with individually incompressible solid and fluid phases, and biphasic models are employed to fit experimental data in order to determine the mechanical and hydraulic properties of the tissues. Two of the most common experimental setups are confined and unconfined compression. Analytical solutions exist for...
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15 صفحه اولUnconfined compression of articular cartilage: nonlinear behavior and comparison with a fibril-reinforced biphasic model.
Mechanical behavior of articular cartilage was characterized in unconfined compression to delineate regimes of linear and nonlinear behavior, to investigate the ability of a fibril-reinforced biphasic model to describe measurements, and to test the prediction of biphasic and poroelastic models that tissue dimensions alter tissue stiffness through a specific scaling law for time and frequency. D...
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ژورنال
عنوان ژورنال: The Open Mechanics Journal
سال: 2007
ISSN: 1874-1584
DOI: 10.2174/187415840701011104