Modeling the failure of an adhesive layer in a peel test

Yu-Yun Lin, C. Y. Hui, Y. C. Wang

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The failure of an adhesive layer in a 180° peel test is analyzed by the modeling of the peel as an elastica. The adhesive is assumed to fail by a process of cavitation and fibrillation. The resistance of the fibrillated material to deformation gives rise to a rate-dependent peel force F. Governing equations, which take into account the large deformation of the fibrillated materials, are derived. Numerical solutions are obtained for the special case of a linear, viscous adhesive. Assuming a critical strain failure criterion for the fibrils, we show that the peel rate is inversely proportional to the square root of the adhesive thickness and directly proportional to F3/4. The connection between the peel test and the tack test is also discussed. The maximum traction on the peel arm is found to be directly proportional to the peel force and inversely proportional to the adhesive thickness.

Original languageEnglish
Pages (from-to)2277-2291
Number of pages15
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume40
Issue number19
DOIs
Publication statusPublished - 2002 Oct 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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