Identification of material parameters of cork-rubber composite based on uniaxial and biaxial experiments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43933007" target="_blank" >RIV/49777513:23520/17:43933007 - 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 material parameters of cork-rubber composite based on uniaxial and biaxial experiments

Original language description

Cork-rubber composites are modern materials with high capability to reduce noise, vibrations and impacts due to viscoelastic behavior. These materials are composed of natural particles of cork and elastomers. In most applications, the cork-rubber composites are used in combination with other materials as part of hybrid composite structures, where soft cork-rubber layers are covered by hard shells made of metals or CFRP composites. Identification of material parameters of viscoelastic materials is a nontrivial task, because the behavior of viscoelastic materials is time and rate dependent. To identify the behavior of cork-rubber composite, several uniaxial and biaxial experiments were performed. Corresponding FE simulations in Abaqus were created based on the experiments. Material parameters were calibrated using numerical optimization methods where the difference between results of experiments and FE simulations was minimized. Resultant material parameters and the process of the identification allow to create more precise FE model of cork-rubber composites.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů