Impact of Adhesively bonded composite joints with edge effect

I. R. Farrow*, K. Potter, A. Fisher, M. Kelly

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

2 Citations (Scopus)

Abstract

A pilot project has been carried out to investigate the effect of impact on single-lap bonded composite joints based on AS4-8552 laminates and Cybond BR4535A adhesive. Low velocity impacts at an energy level sufficient to cause barely visible impact damage, were conducted on single lap joint specimens at different joint positions. Impact caused delaminations in the upper and lower laminates and localised through-thickness cracking in the adhesive. Residual tensile joint strengths of the impacted joint specimens with near-edge damage were reduced to approximately 50% of the un-impacted value. Failure surface inspections revealed localised through-thickness adhesive shear cracking as a governor of the original impact delamination pattern in the laminates and laminate delamination as the cause of ultimate tensile failure.

Translated title of the contributionImpact of Adhesively bonded composite joints with edge effect
Original languageEnglish
Pages (from-to)397-408
Number of pages12
JournalAdvanced Composites Letters
Volume9
Issue number6
Publication statusPublished - 1 Dec 2000

Keywords

  • Bonded joints
  • Composite laminates
  • Damage
  • Impact
  • Residual strength

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