Effect of Ply Orientation on the Mechanical Performance of Carbon Fibre Honeycomb Cores

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU148206" target="_blank" >RIV/00216305:26210/23:PU148206 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/15/11/2503" target="_blank" >https://www.mdpi.com/2073-4360/15/11/2503</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym15112503" target="_blank" >10.3390/polym15112503</a>

Result language

angličtina

Original language name

Effect of Ply Orientation on the Mechanical Performance of Carbon Fibre Honeycomb Cores

Original language description

Carbon fibres used as a honeycomb core material (subject to a proper in-depth analysis of their reinforcement patterns) allows solving the thermo-dimensional stability problem of the units for space systems. Based on the results of numerical simulations with the support of finite element analysis, the paper provides an evaluation of the accuracy of analytical dependencies for the determination of the moduli of elasticity of a carbon fibre honeycomb core in tension/compression and shear. It is shown that a carbon fibre honeycomb reinforcement pattern has a significant impact on the mechanical performance of the carbon fibre honeycomb core. For example, for honeycombs measuring 10 mm in height, the maximum shear modulus values corresponding to the reinforcement pattern of +/- 45 degrees exceed the minimum values for a reinforcement pattern of 0 degrees and 90 degrees by more than 5 times in the XOZ plane and 4 times for the shear modulus in the YOZ plane. The maximum modulus of the elasticity of the honeycomb core in the transverse tension, corresponding to a reinforcement pattern of +/- 75 degrees, exceeds the minimum modulus for the reinforcement pattern of +/- 15 degrees more than 3 times. We observe a decrease in the values of the mechanical performance of the carbon fibre honeycomb core depending on its height. With a honeycomb reinforcement pattern of +/- 45 degrees, the decrease in the shear modulus is 10% in the XOZ plane and 15% in the YOZ plane. The reduction in the modulus of elasticity in the transverse tension for the reinforcement pattern does not exceed 5%. It is shown that in order to ensure high-level moduli of elasticity with respect to tension/compression and shear at the same time, it is necessary to focus on a reinforcement pattern of +/- 64 degrees. The paper covers the development of the experimental prototype technology that produces carbon fibre honeycomb cores and structures for aerospace applications. It is shown by experiments that the use

Czech name

—

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

—

OECD FORD branch

20302 - Applied mechanics

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

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

Name of the periodical

Polymers

ISSN

2073-4360

e-ISSN

—

Volume of the periodical

15

Issue of the periodical within the volume

11

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

1-17

UT code for WoS article

001005063700001

EID of the result in the Scopus database

2-s2.0-85161591881