Identification of relaxation parameter from fluid transient test of a small latex tube

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00199482" target="_blank" >RIV/68407700:21220/12:00199482 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Identification of relaxation parameter from fluid transient test of a small latex tube
Original language description
This paper presents a fluid transient inflation experiments with a viscoelastic tube with small diameter and its numerical simulation. Mathematical description of experimental setup (inflated tube, piping and pressurized vessel) is based on the windkessel model and a nonlinear viscoelastic constitutive model of the inflated tube, which is derived from the principle of maximised dissipated energy. The governing system of equations is solved by means of the implicit Euler method. Fluid transient simulation was used for relaxation parameter identification of the constitutive viscoelastic model of the specimen. The viscoelastic latex tube was tested by static inflation (this step determines the elastic part of the constitutive model) and by a fluid transient test (this step determines the relaxation parameter). Results obtained from simulations were compared with experimental measurements. The accuracy of Windkessel model was enhanced by approximation of velocity profile with polynomial fu
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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