Tensile fatigue behavior of polyester and vinyl ester based gfrp laminate-a comparative evaluation

Wahid Ferdous*, Allan Manalo, Peng Yu, Choman Salih, Rajab Abousnina, Tom Heyer, Peter Schubel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Fatigue loading is critical to fibre reinforced polymer composites due to their anisotropic and heterogenous nature. This study investigated the tensile fatigue behaviour of polyester and vinyl ester based GFRP laminates to understand the critical aspects of failure mode and fatigue life under cyclic loading. GFRP laminates with two different resin systems (polyester and vinyl ester), two different stress ratios (0.1 and 0.5) and two different environmental conditions (air and water) were investigated at an applied stress of 80%, 60%, and 40% of the ultimate capacity. Based on the investigated parameters (i.e., resin types, stress ratio, environmental conditioning, and maximum applied stress), a fatigue model was proposed. Results show that the resin system plays a great role in fatigue failure mode while the stress ratio and environmental condition significantly affect the tensile fatigue life of GFRP laminates. The types of resin used in GFRP laminates and environmental conditions as input parameters in the proposed fatigue model are a unique contribution.

Original languageEnglish
Article number386
Pages (from-to)1-10
Number of pages10
JournalPolymers
Volume13
Issue number3
DOIs
Publication statusPublished - 1 Feb 2021
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2021. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • fatigue
  • fibre composites
  • polyester and vinyl ester resins
  • stress ratio
  • fatigue model

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