Experimental and numerical study of debonding in composite adhesive joints

Rosen T. Tenchev, Brian G. Falzon

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)


The mode I and mode II fracture properties of the FM300-2 adhesive bond between 5HS/RTM6 laminates are determined experimentally by DCB and ELS test. The crack propagation is studied numerically by means of interface elements based on the decohesive zone model. The latter is characterized by material degradation, which is usually assumed to be linear. In the present study it is shown that if a non-linear material degradation is used with an increased magnitude of the interface relative displacement at failure it is possible to model more correctly the experimentally observed significant non-linear behaviour before the start of crack propagation. An adhesive stepped flush joint is studied experimentally and numerically. A mixed mode interaction criterion is used together with the nonlinear material degradation of the interface. Sensitivity studies are performed to study the influence of the parameters defining it.
Original languageEnglish
Title of host publicationProceedings of The Sixteenth International Conference on Composite Materials, July 8-13, 2007: Kyoto, Japan
EditorsKazuro Kageyama, Takashi Ishikawa, et al
Number of pages9
Publication statusPublished - 13 Jul 2007
Event16th International Conference on Composite Materials - Kyoto, Japan
Duration: 08 Jul 200713 Jul 2007


Conference16th International Conference on Composite Materials

Bibliographical note

Proceedings published online and on CD-ROM

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