Publication detail

Precision and Dimensional Stability of Bonded Joints of Carbon-Fibre-Reinforced Polymers Parts

KUPČÁK, R. ZOUHAR, J. VILIŠ, J. GREGOR, L. HRUŠECKÁ, D.

Original Title

Precision and Dimensional Stability of Bonded Joints of Carbon-Fibre-Reinforced Polymers Parts

Type

journal article in Web of Science

Language

English

Original Abstract

This article aims to investigate the accuracy and dimensional stability of bonded metal and CFRP (Carbon Fibre Reinforced Plastic) adherends. The motivation behind this study was to assess the suitability of CFRP for optical devices through the evaluation of precision bonding technology. A binocular was selected as a reference optical device. A technological sample was designed, with required total runout of key dimensions 0.05 mm. The sample underwent testing according to ISO 9022-1. The total runout was evaluated after production and environmental tests. Eight out of 15 samples were turned after gluing due to insufficient accuracy. None of the turned samples exceeded the total runout deviation of 0.01 mm, and the average value of the maximal deviation was 0.0041 mm. The noncalibrated samples performed significantly worse with the average value of the maximal deviation of 0.0164 mm. The measurements during the climatic tests showed that the largest deviation (on average 77.6% of the maximum achieved deviation) occurs at the first temperature loading. Subsequent temperature cycles caused lower deviations. The results highlight the significance of addressing deformations resulting from adhesive volume shrinkage-induced stress as a crucial factor in precision bonding technology.

Keywords

precision bonding; epoxy; stability; carbon fibre; composite materials; sports optics

Authors

KUPČÁK, R.; ZOUHAR, J.; VILIŠ, J.; GREGOR, L.; HRUŠECKÁ, D.

Released

10. 9. 2023

Publisher

MDPI

Location

Basel, Switzerland

ISBN

2076-3417

Periodical

Applied Sciences - Basel

Year of study

13

Number

18

State

Swiss Confederation

Pages count

19

URL

https://www.mdpi.com/2076-3417/13/18/10413

Full text in the Digital Library

http://hdl.handle.net/11012/214451

BibTex

@article{BUT184712,
  author="Radim {Kupčák} and Jan {Zouhar} and Jindřich {Viliš} and Lukáš {Gregor} and Denisa {Hrušecká}",
  title="Precision and Dimensional Stability of Bonded Joints of Carbon-Fibre-Reinforced Polymers Parts",
  journal="Applied Sciences - Basel",
  year="2023",
  volume="13",
  number="18",
  pages="19",
  doi="10.3390/app131810413",
  issn="2076-3417",
  url="https://www.mdpi.com/2076-3417/13/18/10413"
}