Fatigue behavior and self-heating mechanism of novel glass fiber reinforced thermoplastic composite

Mustafa Bakkal, Mete Kayihan*, Azmi Timur, Zeynep Parlar, Canan Gamze Güleryüz Parasız, Aysu Hande Yücel, İbrahim Mehmet Palabıyık, Turgut Gülmez

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this study, fatigue properties of a novel continuous glass fiber reinforced composite with an acrylic-based thermoplastic matrix Elium®, have been investigated and S-N curves were obtained. The effect of various fiber orientations of the plies with glass fibers of 0°/90°/±45°, 0°/90°, and ±45° alignment has been evaluated. The highest fatigue strengths have been recorded for composites with 0°/90° glass fiber ply orientations. Composite with ±45° alignment has the lowest fatigue strengths in S-N curves. Stiffness degradation of the composites with 0°/90° and 0°/90°/±45° at medium fatigue stress levels was calculated and showed higher degradation for stacking having more off-axis plies, i.e. 0°/90°/±45° alignment. Temperature increase during fatigue testing was measured using an IR camera for a medium fatigue stress level for 0°/90°/±45° alignment. Temperature increases were calculated for all stress amplitudes for composites with 0°/90°/±45° and 0°/90° alignment cross-ply sequences. The temperatures obtained were all below the glass transition temperature of the material. The 0°/90°/±45° plies had a higher temperature effect than 0°/90° plies in both analytical calculations and observations.

Original languageEnglish
Pages (from-to)899-915
Number of pages17
JournalAdvanced Composite Materials
Issue number6
Publication statusPublished - 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023 Japan Society for Composite Materials, Korean Society for Composite Materials and Informa UK Limited, trading as Taylor & Francis Group.


This work was supported by the Horizon 2020 Framework Programme [76873]; Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi [MDK-2021-43084].

FundersFunder number
Bilimsel Araştırma Projeleri BirimiMDK-2021-43084
Horizon 2020 Framework Programme76873


    • Elium
    • fatigue
    • fiber orientation
    • GFRP
    • infrared thermography
    • light weighting
    • mechanical testing
    • thermoplastic composites


    Dive into the research topics of 'Fatigue behavior and self-heating mechanism of novel glass fiber reinforced thermoplastic composite'. Together they form a unique fingerprint.

    Cite this