Improved damage tolerant face/core interface design in sandwich structures

Christian Lundsgaard-Larsen (Invited author), Christian Berggreen (Invited author), Amilcar Quispitupa (Invited author), L.A. Carlsson (Invited author)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


A face/core debond in a sandwich structure may propagate in the interface or kink into either the face or core depending on the mode-mixity of the loading. This study explores experimental methodologies for mapping the kinking behavior at various mode-mixities. Further, it is shown that the crack kinking behavior may be altered / avoided by changing the interface design by using Chopped Strand Mat (CSM), Continuous Filament Mat (CFM) and woven mats at the face/core interface as sources for fiber bridging, thus keeping and arresting the crack in the interface.
Original languageEnglish
Title of host publicationICCM-17
Publication date2009
Publication statusPublished - 2009
Event17th International Conference on Composite Materials - Edinburgh, United Kingdom
Duration: 27 Jul 200931 Jul 2009
Conference number: 17


Conference17th International Conference on Composite Materials
Country/TerritoryUnited Kingdom
Internet address


  • Fracture mechanics
  • Crack kinking
  • Mode-mixity
  • Sandwich structures


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