Publication detail

Application of composite materials in sports optics

KUPČÁK, R. ZOUHAR, J.

English title

Application of composite materials in sports optics

Type

journal article in Scopus

Language

en

Original abstract

CFRP (Carbon Fiber Reinforced Polymers) are often used when designing parts that need to be stiff, light and thermally stable. These benefits are a big motivation to use CFRP in many applications, one of them could be sports optics. However, optical devices require precise dimensions with tight tolerances for the optical assembly to work correctly. In order to determine if CFRP could be a suitable material of choice for sports optics a simplified body of binoculars was designed. The tubular body was manufactured by prepreg lay-up into a 3D printed mold, followed by curing in an autoclave. After the prototype was manufactured 3D measurements of the tube using 3D scanner GOM ATOS were made. As expected, shrinkage of the mold and the epoxy resin in the matrix of CFRP caused minor deformations. However, if the shape of the cured part remains unchanged during conditions similar to the general use of binoculars, then the initial deformations happening during manufacturing could be accounted for when designing the part. © 2020 Manufacturing Technology. All rights reserved.

English abstract

CFRP (Carbon Fiber Reinforced Polymers) are often used when designing parts that need to be stiff, light and thermally stable. These benefits are a big motivation to use CFRP in many applications, one of them could be sports optics. However, optical devices require precise dimensions with tight tolerances for the optical assembly to work correctly. In order to determine if CFRP could be a suitable material of choice for sports optics a simplified body of binoculars was designed. The tubular body was manufactured by prepreg lay-up into a 3D printed mold, followed by curing in an autoclave. After the prototype was manufactured 3D measurements of the tube using 3D scanner GOM ATOS were made. As expected, shrinkage of the mold and the epoxy resin in the matrix of CFRP caused minor deformations. However, if the shape of the cured part remains unchanged during conditions similar to the general use of binoculars, then the initial deformations happening during manufacturing could be accounted for when designing the part. © 2020 Manufacturing Technology. All rights reserved.

Keywords in English

3-D measurement, 3-D scanner, Carbon fiber reinforced polyme, Optical assemblies, Prepregs, Thermally stable, Tight tolerances

Released

18.08.2020

Publisher

J. E. Purkyne University in Usti nad Labem

Location

Usti nad Labem

ISSN

1213-2489

Volume

20

Number

2

Pages from–to

200–209

Pages count

9

BIBTEX


@article{BUT165306,
  author="Radim {Kupčák} and Jan {Zouhar},
  title="Application of composite materials in sports optics",
  year="2020",
  volume="20",
  number="2",
  month="August",
  pages="200--209",
  publisher="J. E. Purkyne University in Usti nad Labem",
  address="Usti nad Labem",
  issn="1213-2489"
}