Abstract
Delamination, a major cause of composite failure, is often simulated in experiments using artificial film inserts. In many cases the material used to create these inserts in not carefully controlled. Here a series of tensile tests were performed on central cut ply specimens with different insert film materials in both glass fibre epoxy (E-glass/913) and carbon fibre epoxy (IM7/8552) from which the mode II energy release rate can be calculated from the load at failure. When compared to specimens without inserts, some of the film inserts give a mode II the energy release rate, with considerable variation with film material. Also it was found that a change in specimen material can influence the effectiveness of the insert used.
Original language | English |
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Pages (from-to) | 2589-2597 |
Number of pages | 9 |
Journal | Journal of Composite Materials |
Volume | 49 |
Issue number | 21 |
DOIs | |
Publication status | Published - 18 Sept 2015 |
Keywords
- Carbon fibre
- delamination
- fracture toughness
- glass fibre
- mechanical testing