A study of skin-core adhesion in glass fibre reinforced sandwich materials

W. J. Cantwell, P. Davies

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

A test technique for measuring skin-core adhesion in fibre reinforced sandwich structures has been developed and applied. The test enables the interfacial fracture energy to be measured for most standard sandwich constructions. The technique has been subsequently employed to investigate skin-core adhesion in a number of sandwich structures similar to those currently used in the marine industry. It has been shown that the interfacial fracture toughness of a GFRP-crosslinked PVC sandwich structure can be as high as 2700 J/m2; however, sandwich constructions based on balsa cores offered considerably lower values of interfacial fracture energy. Here it was found that pre-treating the balsa core prior to bonding of the composite skins has a deleterious effect on the measured fracture toughness. Finally, the results of these tests have been correlated with data obtained from conventional climbing drum and short beam shear tests.

Original languageBritish English
Pages (from-to)407-420
Number of pages14
JournalApplied Composite Materials
Volume3
Issue number6
DOIs
StatePublished - 1996

Keywords

  • Climbing drum test
  • Interfacial fracture toughness
  • Sandwich materials
  • Skin-core adhesion

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