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BY 4.0 license Open Access Published by De Gruyter Open Access February 10, 2022

Determination of the dynamic performance of natural viscoelastic composites with different proportions of reinforcing fibers

  • Sergei Shlykov , Rodion Rogulin EMAIL logo and Sergey Kondrashev


Viscoelastic composites are strong and handle vibration damping quite well, which allows them to be used in a wide variety of applications. Thus, there is a need to determine the optimal amount of fiber to ensure high mechanical and dynamic performance with as little interference as possible. The purpose of this work is to find the most appropriate percentage of organic fiber – cellulose derived from corn stalks in a polylactic acid matrix, studying the changes in damping characteristics, tensile strength, bend-test. As parameters for comparison, the coefficient of bending and breaking strength, modules of accumulation and losses, factor C were chosen. It was found that strength indicators decrease with fiber fraction growth. While the damping factor at the glass transition temperature increases. In order to confirm the results obtained, the calculation of the C factor was used. The study investigates the damping factor’s dependence on the mechanical properties. It is shown that there is a correlation between moduli and bending strength with increasing fiber fraction. The scientific novelty of this work is the study of natural viscoelastic composites with different proportions of reinforcing fibers based on mechanical and dynamic characteristics in order to create and apply biodegradable viscoelastic composites in various fields.


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Received: 2021-10-15
Accepted: 2022-01-19
Published Online: 2022-02-10

© 2022 Sergei Shlykov et al., published by De Gruyter

This work is licensed under the Creative Commons Attribution 4.0 International License.

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