Effects of Pre-strain, Strain Amplitude and Frequency on Dynamic Compressive Properties of Magnetorheological Elastomeric Composite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F22%3A00010191" target="_blank" >RIV/46747885:24210/22:00010191 - isvavai.cz</a>

Výsledek na webu

<a href="https://mech.fsv.cvut.cz/ean2021/final-book-ean2021.pdf" target="_blank" >https://mech.fsv.cvut.cz/ean2021/final-book-ean2021.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effects of Pre-strain, Strain Amplitude and Frequency on Dynamic Compressive Properties of Magnetorheological Elastomeric Composite

Popis výsledku v původním jazyce

Dynamic compressive properties of isotropic magnetorheological elastomeric composite (MEC) under cyclic compression loading have been studied in this paper. Effects of pre-strains from 5 to 20%, strain amplitudes from 0.01 to 0.04, and excitation frequencies from 10 to 50 Hz on the dynamic properties of isotropic MEC under harmonic cyclic compression loading were examined. Results showed that the storage and loss moduli of the isotropic MEC decreased with increasing the strain amplitude, but they enhanced with the rise of the pre-strain and frequency. Although the storage modulus of the MEC changed slightly over time, the loss modulus reduced somewhat with increasing time. The reduction in the loss modulus of the MEC under cyclic compression loading is attributed to increasing material temperature during the testing. Besides, despite the loss angle tended to reduce over time, it changed irregularly with raising the pre-strain, strain amplitude, and frequency as well. In general, the dynamic compressive properties of the MEC strongly depended on the pre-strain, strain amplitude, and frequency of cyclic loading.

Název v anglickém jazyce

Effects of Pre-strain, Strain Amplitude and Frequency on Dynamic Compressive Properties of Magnetorheological Elastomeric Composite

Popis výsledku anglicky

Dynamic compressive properties of isotropic magnetorheological elastomeric composite (MEC) under cyclic compression loading have been studied in this paper. Effects of pre-strains from 5 to 20%, strain amplitudes from 0.01 to 0.04, and excitation frequencies from 10 to 50 Hz on the dynamic properties of isotropic MEC under harmonic cyclic compression loading were examined. Results showed that the storage and loss moduli of the isotropic MEC decreased with increasing the strain amplitude, but they enhanced with the rise of the pre-strain and frequency. Although the storage modulus of the MEC changed slightly over time, the loss modulus reduced somewhat with increasing time. The reduction in the loss modulus of the MEC under cyclic compression loading is attributed to increasing material temperature during the testing. Besides, despite the loss angle tended to reduce over time, it changed irregularly with raising the pre-strain, strain amplitude, and frequency as well. In general, the dynamic compressive properties of the MEC strongly depended on the pre-strain, strain amplitude, and frequency of cyclic loading.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybridní materiály pro hierarchické struktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

EAN 2021 - 59th International Scientific Conference on Experimental Stress Analysis - Book of Full Papers

ISBN

978-80-01-06885-4

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

142-149

Název nakladatele

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Místo vydání

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Místo konání akce

Litomyšl

Datum konání akce

1. 1. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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