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Internal structure of short fiber reinforced thermoplastics manufactured with fused filament fabrication

  • KU Leuven

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Due to the layer-by-layer printing nature of fused filament fabrication of short fiber reinforced thermoplastics, the microstructural properties of these materials, such as fiber volume fractions and fiber orientations will be different across different cross-sections or sub-volumes. This study investigates the variability in the internal structure of a glass fiber-reinforced thermoplastic composite by scanning different-sized specimens under X-ray computed tomography. Scanned images are divided into equal-sized sub-volumes that cover the entire volume, either with an exact fit or with overlaps, depending on the size of the sub-volume. Fiber volume fractions and fiber orientations are analyzed over these sub-volumes. Results show that analyzing only 42.2% of the scanned volume provides an estimation of fiber volume fraction around 1% of error. Fiber orientation distributions are determined to be similar between layers of the same printing orientation.

Original languageEnglish
Title of host publication28th International ESAFORM Conference on Material Forming, ESAFORM 2025
EditorsPierpaolo Carlone, Luigino Filice, Domenico Umbrello
PublisherAssociation of American Publishers
Pages295-304
Number of pages10
ISBN (Print)9781644903599
DOIs
Publication statusPublished - 2025
Event28th International ESAFORM Conference on Material Forming, ESAFORM 2025 - Paestum, Italy
Duration: 7 May 20259 May 2025

Publication series

NameMaterials Research Proceedings
Volume54
ISSN (Print)2474-3941
ISSN (Electronic)2474-395X

Conference

Conference28th International ESAFORM Conference on Material Forming, ESAFORM 2025
Country/TerritoryItaly
CityPaestum
Period7/05/259/05/25

Keywords

  • Fiber Orientation
  • Fiber Volume Fraction
  • Short Fibers
  • X-Ray Computed Tomography

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