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    Sensitivities of Medial Meniscal Motion and Deformation to Material Properties of Articular Cartilage, Meniscus and Meniscal Attachments Using Design of Experiments Methods

    Source: Journal of Biomechanical Engineering:;2006:;volume( 128 ):;issue: 003::page 399
    Author:
    Jiang Yao
    ,
    Jason Snibbe
    ,
    Mike Maloney
    ,
    Amy L. Lerner
    ,
    Paul D. Funkenbusch
    DOI: 10.1115/1.2191077
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: This study investigated the role of the material properties assumed for articular cartilage, meniscus and meniscal attachments on the fit of a finite element model (FEM) to experimental data for meniscal motion and deformation due to an anterior tibial loading of 45N in the anterior cruciate ligament-deficient knee. Taguchi style L18 orthogonal arrays were used to identify the most significant factors for further examination. A central composite design was then employed to develop a mathematical model for predicting the fit of the FEM to the experimental data as a function of the material properties and to identify the material property selections that optimize the fit. The cartilage was modeled as isotropic elastic material, the meniscus was modeled as transversely isotropic elastic material, and meniscal horn and the peripheral attachments were modeled as noncompressive and nonlinear in tension spring elements. The ability of the FEM to reproduce the experimentally measured meniscal motion and deformation was most strongly dependent on the initial strain of the meniscal horn attachments (ε1H), the linear modulus of the meniscal peripheral attachments (EP) and the ratio of meniscal moduli in the circumferential and transverse directions (Eθ∕ER). Our study also successfully identified values for these critical material properties (ε1H=−5%, EP=5.6MPa, Eθ∕ER=20) to minimize the error in the FEM analysis of experimental results. This study illustrates the most important material properties for future experimental studies, and suggests that modeling work of meniscus, while retaining transverse isotropy, should also focus on the potential influence of nonlinear properties and inhomogeneity.
    keyword(s): Deformation , Motion , Materials properties , Design , Errors , Finite element model , Cartilage , Experimental design , Composite materials , Knee AND Finite element methods ,
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      Sensitivities of Medial Meniscal Motion and Deformation to Material Properties of Articular Cartilage, Meniscus and Meniscal Attachments Using Design of Experiments Methods

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    http://yetl.yabesh.ir/yetl1/handle/yetl/133204
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    contributor authorJiang Yao
    contributor authorJason Snibbe
    contributor authorMike Maloney
    contributor authorAmy L. Lerner
    contributor authorPaul D. Funkenbusch
    date accessioned2017-05-09T00:18:57Z
    date available2017-05-09T00:18:57Z
    date copyrightJune, 2006
    date issued2006
    identifier issn0148-0731
    identifier otherJBENDY-26597#399_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/133204
    description abstractThis study investigated the role of the material properties assumed for articular cartilage, meniscus and meniscal attachments on the fit of a finite element model (FEM) to experimental data for meniscal motion and deformation due to an anterior tibial loading of 45N in the anterior cruciate ligament-deficient knee. Taguchi style L18 orthogonal arrays were used to identify the most significant factors for further examination. A central composite design was then employed to develop a mathematical model for predicting the fit of the FEM to the experimental data as a function of the material properties and to identify the material property selections that optimize the fit. The cartilage was modeled as isotropic elastic material, the meniscus was modeled as transversely isotropic elastic material, and meniscal horn and the peripheral attachments were modeled as noncompressive and nonlinear in tension spring elements. The ability of the FEM to reproduce the experimentally measured meniscal motion and deformation was most strongly dependent on the initial strain of the meniscal horn attachments (ε1H), the linear modulus of the meniscal peripheral attachments (EP) and the ratio of meniscal moduli in the circumferential and transverse directions (Eθ∕ER). Our study also successfully identified values for these critical material properties (ε1H=−5%, EP=5.6MPa, Eθ∕ER=20) to minimize the error in the FEM analysis of experimental results. This study illustrates the most important material properties for future experimental studies, and suggests that modeling work of meniscus, while retaining transverse isotropy, should also focus on the potential influence of nonlinear properties and inhomogeneity.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleSensitivities of Medial Meniscal Motion and Deformation to Material Properties of Articular Cartilage, Meniscus and Meniscal Attachments Using Design of Experiments Methods
    typeJournal Paper
    journal volume128
    journal issue3
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.2191077
    journal fristpage399
    journal lastpage408
    identifier eissn1528-8951
    keywordsDeformation
    keywordsMotion
    keywordsMaterials properties
    keywordsDesign
    keywordsErrors
    keywordsFinite element model
    keywordsCartilage
    keywordsExperimental design
    keywordsComposite materials
    keywordsKnee AND Finite element methods
    treeJournal of Biomechanical Engineering:;2006:;volume( 128 ):;issue: 003
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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