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    Dynamic Analysis of Generalized Viscoelastic Fluids

    Source: Journal of Engineering Mechanics:;1993:;Volume ( 119 ):;issue: 008
    Author:
    Nicos Makris
    ,
    G. F. Dargush
    ,
    M. C. Constantinou
    DOI: 10.1061/(ASCE)0733-9399(1993)119:8(1663)
    Publisher: American Society of Civil Engineers
    Abstract: A general boundary‐element formulation is presented for the prediction of the dynamic response of fluids with viscoelastic behavior. The fluid is modeled by a generalized constitutive relation that contains either complex‐valued parameters and complex‐order derivatives or real‐valued parameters and fractional‐order derivatives. These models are consistent with basic theories and are not arbitrary constructions. The models are valid for linear viscoelastic fluid behavior and are limited to fluid motions with infinitesimally small displacement gradients. The governing equations are transformed into the Laplace domain and the infinite space fundamental solution is derived. The resulting integral equations are then solved by numerical procedures. The method is applied in the prediction of the dynamic mechanical properties of a viscous damper containing a viscoelastic fluid in the form of silicon gel. The fluid is modeled by a fractional derivative Maxwell model. The predicted mechanical properties of the device are found to be in excellent agreement with experimental results.
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      Dynamic Analysis of Generalized Viscoelastic Fluids

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    http://yetl.yabesh.ir/yetl1/handle/yetl/70960
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    contributor authorNicos Makris
    contributor authorG. F. Dargush
    contributor authorM. C. Constantinou
    date accessioned2017-05-08T22:05:17Z
    date available2017-05-08T22:05:17Z
    date copyrightAugust 1993
    date issued1993
    identifier other20846240.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/70960
    description abstractA general boundary‐element formulation is presented for the prediction of the dynamic response of fluids with viscoelastic behavior. The fluid is modeled by a generalized constitutive relation that contains either complex‐valued parameters and complex‐order derivatives or real‐valued parameters and fractional‐order derivatives. These models are consistent with basic theories and are not arbitrary constructions. The models are valid for linear viscoelastic fluid behavior and are limited to fluid motions with infinitesimally small displacement gradients. The governing equations are transformed into the Laplace domain and the infinite space fundamental solution is derived. The resulting integral equations are then solved by numerical procedures. The method is applied in the prediction of the dynamic mechanical properties of a viscous damper containing a viscoelastic fluid in the form of silicon gel. The fluid is modeled by a fractional derivative Maxwell model. The predicted mechanical properties of the device are found to be in excellent agreement with experimental results.
    publisherAmerican Society of Civil Engineers
    titleDynamic Analysis of Generalized Viscoelastic Fluids
    typeJournal Paper
    journal volume119
    journal issue8
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)0733-9399(1993)119:8(1663)
    treeJournal of Engineering Mechanics:;1993:;Volume ( 119 ):;issue: 008
    contenttypeFulltext
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