Influence of Thermal Cycling on Friction, Wear, and Damage Evolution of Fused Deposition Modeling of 3D-Printed Glass Fiber Reinforced Polylactic Acid Composites

FİDAN S., ÜRGÜN S., KARSLI YILMAZ N. G., YILMAZ T., BORA M. Ö., Ozsoy M. I.

POLYMER COMPOSITES, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1002/pc.71345
  • Dergi Adı: POLYMER COMPOSITES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Academic Search Ultimate (EBSCO), Materials Science & Engineering Collection (ProQuest), Pharma Collection (ProQuest), Technology Collection (ProQuest)
  • Kocaeli Üniversitesi Adresli: Evet

Özet

This research work investigated the effect of the cyclic thermo-hygrometric aging regime between -20 degrees C and +40 degrees C with 0-400 cycles on the reciprocating tribological properties of fused deposition modeling (FDM) printed polylactic acid (PLA) and the same material reinforced with 10 wt.% and 15 wt.% of glass fiber GF. The samples were analyzed for wear through non-contact laser profilometry, scanning electron microscopy, and thermal gravimetric analysis. The neat PLA showed a non-monotonic wear profile since it was observed that the wear volume of this material increased drastically from 0.033 to 0.335 mm3 after 200 cycles at 10 N, and finally, achieved a maximum value of 2.042 mm3 after 400 cycles subjected to 20 N. However, the reinforcing GF changed such profile, reducing by up to 83% the wear volume. The most interesting result is that the combination of 15 wt.% of GF in a polymer subjected to 200 cycles produced a regime where the coefficient of friction (COF) was greater than unity (1.37), despite having no increase in the volumetric wear loss (Delta = 4.5%). Therefore, it is possible to conclude that there is a decoupling between the processes due to debonding of the interfaces and the third-body wear mechanism. Factorial ANOVA (R 2 = 99.32%) showed that Material & times; Cycle & times; Load interaction (29.39%) was the main contribution to this effect.