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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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