Effects of Film Thickness on The Work of Fracture Between Adhesives and Glass

D. A. Schupp, W. W. Gerberich

Research output: Contribution to journalArticlepeer-review

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In this investigation, the fracture energy of joints consisting of soda lime glass sandwiched around either an acrylate or poly(vinyl butyral) (PVB) was studied. This was accomplished for various adhesive thicknesses with the use of a tapered double cantilever beam specimen loaded in mode I. For adhesive thicknesses varying between 0.03 mm and 0.80 mm, the fracture energies ranged from 15 to 95 Pam for the glassy acrylate joints and from 375 to 1060 Pa m for the more rubbery PVB joints. While the fracture energy was relatively independent of thickness for the acrylate joints, there was an increasing trend in toughness for the PVB joints. The fracture energy of the acrylate joints was modeled with a process zone model with reasonable results while the fracture energy of the PVB joints was modeled with constraints on the plastic zone. Scanning electron microscopy and measured bulk adhesive properties provided necessary input into the models.

Original languageEnglish (US)
Pages (from-to)269-283
Number of pages15
JournalThe Journal of Adhesion
Issue number4
StatePublished - 1991

Bibliographical note

Funding Information:
The authors would like to thank Dr. David of Monsanto, Springfield, Massachusetts, U.S.A., and Bill Wiele of Novus Incorporated, Minneapolis, Minnesota, U.S.A. for supplying the PVB and acrylate, respectively. We would also like to acknowledge Novus Incorporated, and the NSF Sponsored Engineering Research Center for Interfacial Engineering, Grant NSF/CDR-8721551 for funding this project.


  • PVB joints
  • Polymer/glass adhesion
  • acrylate joints
  • adhesive fracture toughness
  • plastic constraint
  • process zone model

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