Identification of viscoelastic material properties using the analysis of waves propagated in thin rods

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F21%3A43963240" target="_blank" >RIV/49777513:23520/21:43963240 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11025/46214" target="_blank" >http://hdl.handle.net/11025/46214</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Identification of viscoelastic material properties using the analysis of waves propagated in thin rods
Original language description
This work deals with the identification of material parameters of a thin prismatic viscoelastic homogeneous rods. The first part of this paper discusses transient waves in a viscoelastic 1D medium and presents the relations describing the acceleration of a rod in the space-time domain for specified boundary conditions and for different types of axial load. Subsequently, experiments performed on rods of various material properties, which verify the correctness of the derived solution, are presented in the next part. The following paragraph describes the procedure of material properties identification, which is implemented in the Matlab environment and uses a built-in optimization function and an algorithm of numerical inverse Laplace transform (NILT). Finally, the results of the optimization are analysed and discussed.
Czech name
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Czech description
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Project
<a href="/en/project/GA19-04956S" target="_blank" >GA19-04956S: Dynamic and nonlinear behaviour of smart structures; modelling and optimization</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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