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423514

EVALUATING THE TRIBOLOGICAL PERFORMANCE OF FIBER-REINFORCED COMPOSITES FOR ORTHOPEDIC FIXATION SYSTEMS

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Last updated: 27 Apr 2025

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Abstract

This study investigates the tribological performance of epoxy-based polymer composites reinforced with flax, carbon fiber (CF), Kevlar, and hybrid Kevlar-Carbon fibers to assess their suitability for orthopedic implant applications. The research focuses on two key parameters: the coefficient of friction (COF) and surface roughness, both of which are crucial for implant durability and functionality. A reciprocating wear test was conducted under varying normal loads (2 N, 4 N, 6 N and 8 N) and fiber volume fractions (8 %, 16 % and 24 %) to evaluate frictional behavior. The results indicate a significant reduction in COF with increasing fiber content across all reinforcement types, demonstrating the beneficial effects of fiber incorporation. Among the tested composites, CF exhibited the lowest COF due to its self-lubricating properties and smoother surface, whereas flax fiber composites consistently showed the highest COF, attributed to their rougher texture and higher adhesion with stainless steel. Hybrid Kevlar-Carbon composites demonstrated intermediate COF values, balancing Kevlar's toughness with CF's friction-reducing characteristics. Additionally, surface roughness was measured using a Mitutoyo Surftest SJ-210 after tribological testing to analyse the effect of wear on the composite surfaces. The findings revealed an increase in surface roughness with higher fiber volume fractions, particularly in flax and Kevlar composites. These results highlight the importance of optimizing fiber selection and volume fraction to achieve favorable tribological properties, ensuring reduced friction while maintaining adequate wear resistance. The study provides valuable insights into the potential application of fiber-reinforced epoxy composites in biomedical implants, emphasizing their ability to enhance durability, minimize wear-related complications, and improve implant longevity.

DOI

10.21608/jest.2025.423514

Keywords

Orthopaedic implants, Kevlar fibers, carbon fibers, epoxy composites, coefficient of friction, Surface roughness

Authors

First Name

Eyad

Last Name

M. A.

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Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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First Name

M. K.

Last Name

Mohamed

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-

Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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Orcid

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First Name

A. H.

Last Name

Badran

MiddleName

-

Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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Orcid

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First Name

W. Y.

Last Name

Ali

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-

Affiliation

Department of Production Engineering and Mechanical Design, Faculty of Engineering, Minia University, El-Minia, EGYPT.

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Volume

22

Article Issue

2

Related Issue

55231

Issue Date

2025-04-01

Receive Date

2025-04-20

Publish Date

2025-04-01

Page Start

28

Page End

39

Print ISSN

2090-5882

Online ISSN

2090-5955

Article File

JEST_Volume 22_Issue 2_Pages 28-39.pdf

PDF . 807.8kB

Link

https://jest.journals.ekb.eg/article_423514.html

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http://journals.ekb.eg?_action=service&article_code=423514

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423,514

Publication Type

Journal

Publication Title

Journal of the Egyptian Society of Tribology

Publication Link

https://jest.journals.ekb.eg/

MainTitle

EVALUATING THE TRIBOLOGICAL PERFORMANCE OF FIBER-REINFORCED COMPOSITES FOR ORTHOPEDIC FIXATION SYSTEMS

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Article

Created At

27 Apr 2025