A novel and robust method to quantify fatigue damage in fibre composite materials using thermal imagine analysis

Martin A. Eder, Ali Sarhadi, Xiao Chen*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

13 Downloads (Pure)

Abstract

This work proposes a novel and robust thermal imaging-based method suitable to quantify damage evolution stages in fibre-reinforced composite materials under fatigue loading. The method uses adiabatic hysteretic heating of the material to calculate the change of enthalpy by thermal imaging when the material undergoes fatigue damage. This work analytically corroborates the validity of using the calculated change of enthalpy to identify the three different fundamental fatigue damage stages of the material. The method is applied to two different types of notched sandwich specimens subject to constant amplitude fatigue loading. It is practically demonstrated that the characteristic curve progressions of the mechanically measured hysteretic dissipation curves are in good agreement with those of the enthalpy change computed by the proposed method.
Original languageEnglish
Article number106326
JournalInternational Journal of Fatigue
Volume150
Number of pages8
ISSN0142-1123
DOIs
Publication statusPublished - 2021

Keywords

  • Fibre composite materials
  • Hysteric energy dissipation
  • Fatigue damage
  • Thermal imaging
  • Enthalpy

Fingerprint

Dive into the research topics of 'A novel and robust method to quantify fatigue damage in fibre composite materials using thermal imagine analysis'. Together they form a unique fingerprint.

Cite this