Fatigue damage evolution in unidirectional glass/epoxy composites under a cyclic load

Oscar Castro*, Paolo Andrea Carraro, Lucio Maragoni, Marino Quaresimin

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The initiation and progression of fiber damage in on-axis UD glass/epoxy materials under fatigue loading conditions were studied. Uniaxial tension–tension fatigue tests at different load levels were carried out to monitor the fiber damage evolution through the fatigue lifetime. The damage evolution was quantified by initial fiber breaks, the evolution of fiber breaks, fragmentation and clustering progression. Through qualitative and quantitative analyses, it is shown how the fiber damage evolution depends on the number of cycles, the applied load level and the number of broken fibers during the first cycle.
Original languageEnglish
JournalPolymer Testing
Volume74
Pages (from-to)216-224
ISSN0142-9418
DOIs
Publication statusPublished - 2019

Keywords

  • Fatigue damage
  • Damage evolution
  • Glass/epoxy materials
  • Broken fibers

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