Characteristic comparison of wound and wrapped composite tubes made from carbon prepreg using modal analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F18%3A00004355" target="_blank" >RIV/46747885:24210/18:00004355 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.21595/jve.2017.19491" target="_blank" >http://dx.doi.org/10.21595/jve.2017.19491</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21595/jve.2017.19491" target="_blank" >10.21595/jve.2017.19491</a>

Result language

angličtina

Original language name

Characteristic comparison of wound and wrapped composite tubes made from carbon prepreg using modal analysis

Original language description

In this study, the main properties of two almost identical composite rods manufactured from preimpregnated carbon fibres using two different methods will be compared. The first one is called “wrapping” which is helical layering of one wide tape in each ply. The main benefit of this method is good quality of final parts, but we are limited only by straight shapes. The second way “winding”, it is simultaneous deposition of several thinner fiber filaments. This method could handle the problem of curved shapes and fluently variable cross-sections. The disadvantage of this method is imperfect alignment of the placed fibers. This could be caused by a significant tortuosity and stickiness of the individual fiber strands. The goal of the carried work was to experimentally compare the vibrational transfer of these two almost identical rods with the same structure of layers, weight and curing parameters. Based on the certified properties of the base fibres and known boundary conditions, the material model and simulation of the vibrational response was created. The results of the empirical model compared with the experimental on the wrapped part were in good agreement. However, the use of this model also for the wound tubes is questionable, because of the found differences in natural frequencies and a shape of the transfer function. As part of the analytical study also the sensitivity analysis on the mesh quality has been done. As the conclusion is possible to say, that for determination of the main modes the mesh in a solved model could be just standard - it means without visible defects. Changes in the results achieved by improving the mesh quality are just really small.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

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

2018

Confidentiality

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

Name of the periodical

JOURNAL OF VIBROENGINEERING

ISSN

1392-8716

e-ISSN

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Volume of the periodical

20

Issue of the periodical within the volume

1

Country of publishing house

LT - LITHUANIA

Number of pages

10

Pages from-to

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UT code for WoS article

000431126100039

EID of the result in the Scopus database

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