Abstract
In this study the effect of interleaved nanofiber on mode I and mode II fracture response of composite laminates is considered. For this aim, electrospun Nylon 6,6 and poly-caprolactone (PCL) nanofibers and their combination are put in the mid-plane of unidirectional glass/epoxy laminates, which are then subjected to double cantilever beam (DCB) and end notched flexure (ENF) fracture tests. Results showed that PCL nanofibers could improve modes I and II energy release rate (GI and GII) almost equally with 25% and 24% increase. Influence of Nylon 6,6 nanofiber is mostly on mode II loading with 68% enhancement, while its effect on mode I is negligible (4.5% increase). It is also shown that combination of these two kinds of nanofibers lead to 21% and 56% increase in GI and GII, respectively which are between the results of the individual nanofibers.
| Original language | English |
|---|---|
| Pages (from-to) | 41-47 |
| Number of pages | 7 |
| Journal | Composite Structures |
| Volume | 109 |
| Issue number | 1 |
| Early online date | 4 Nov 2013 |
| DOIs | |
| Publication status | Published - Mar 2014 |
| Event | International Conference on Composite Structures 17 - Porto, Portugal Duration: 17 Jun 2013 → 21 Jun 2013 |
Keywords
- composite nanofibers
- electrospinning
- fracture
- interleaving
- laminate composite
- composite nanofibrous mats
- delamination behavior
- polymeric composite materials