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    Viscoelastic Material Properties of the Myocardium and Cardiac Jelly in the Looping Chick Heart

    Source: Journal of Biomechanical Engineering:;2012:;volume( 134 ):;issue: 002::page 24502
    Author:
    Jiang Yao
    ,
    Victor D. Varner
    ,
    Lauren L. Brilli
    ,
    Jonathan M. Young
    ,
    Larry A. Taber
    ,
    Renato Perucchio
    DOI: 10.1115/1.4005693
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Accurate material properties of developing embryonic tissues are a crucial factor in studies of the mechanics of morphogenesis. In the present work, we characterize the viscoelastic material properties of the looping heart tube in the chick embryo through nonlinear finite element modeling and microindentation experiments. Both hysteresis and ramp-hold experiments were performed on the intact heart and isolated cardiac jelly (extracellular matrix). An inverse computational method was used to determine the constitutive relations for the myocardium and cardiac jelly. With both layers assumed to be quasilinear viscoelastic, material coefficients for an Ogden type strain-energy density function combined with Prony series of two terms or less were determined by fitting numerical results from a simplified model of a heart segment to experimental data. The experimental and modeling techniques can be applied generally for determining viscoelastic material properties of embryonic tissues.
    keyword(s): Density , Viscoelastic materials , Biological tissues , Constitutive equations , Modeling , Stress , Myocardium , Computational methods , Relaxation (Physics) , Materials properties , Force AND Fittings ,
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      Viscoelastic Material Properties of the Myocardium and Cardiac Jelly in the Looping Chick Heart

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    http://yetl.yabesh.ir/yetl1/handle/yetl/148292
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    • Journal of Biomechanical Engineering

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    contributor authorJiang Yao
    contributor authorVictor D. Varner
    contributor authorLauren L. Brilli
    contributor authorJonathan M. Young
    contributor authorLarry A. Taber
    contributor authorRenato Perucchio
    date accessioned2017-05-09T00:48:37Z
    date available2017-05-09T00:48:37Z
    date copyrightFebruary, 2012
    date issued2012
    identifier issn0148-0731
    identifier otherJBENDY-28990#024502_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/148292
    description abstractAccurate material properties of developing embryonic tissues are a crucial factor in studies of the mechanics of morphogenesis. In the present work, we characterize the viscoelastic material properties of the looping heart tube in the chick embryo through nonlinear finite element modeling and microindentation experiments. Both hysteresis and ramp-hold experiments were performed on the intact heart and isolated cardiac jelly (extracellular matrix). An inverse computational method was used to determine the constitutive relations for the myocardium and cardiac jelly. With both layers assumed to be quasilinear viscoelastic, material coefficients for an Ogden type strain-energy density function combined with Prony series of two terms or less were determined by fitting numerical results from a simplified model of a heart segment to experimental data. The experimental and modeling techniques can be applied generally for determining viscoelastic material properties of embryonic tissues.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleViscoelastic Material Properties of the Myocardium and Cardiac Jelly in the Looping Chick Heart
    typeJournal Paper
    journal volume134
    journal issue2
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.4005693
    journal fristpage24502
    identifier eissn1528-8951
    keywordsDensity
    keywordsViscoelastic materials
    keywordsBiological tissues
    keywordsConstitutive equations
    keywordsModeling
    keywordsStress
    keywordsMyocardium
    keywordsComputational methods
    keywordsRelaxation (Physics)
    keywordsMaterials properties
    keywordsForce AND Fittings
    treeJournal of Biomechanical Engineering:;2012:;volume( 134 ):;issue: 002
    contenttypeFulltext
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