Abstract
The method of low current loading on single carbon fiber composite system was designed for carbon fiber/epoxy resin. By means of single fiber fragmentation test, the effects of low current on interfacial bonding properties of two kinds of carbon fiber/epoxy resin systems were investigated. The results show that the interfacial bonding strength and interfacial load transfer efficiency of T300B and T700SC carbon fiber systems decrease after loading with 0.60-0.67mA direct current. The decreasing degrees do not change obviously with current-loading time. The interfacial bonding property of the T300B carbon fiber system shows higher sensitivity to low current. This may be attributed to different surface characteristics of the two carbon fibers. By changing the curing degree of the matrix, the interfacial bonding strength of samples after low current loading was analyzed, and the mechanism of carbon fiber/epoxy resin interfacial property affected by low current is related to change of stress state at interfacial region and the joule heating effect generated by current.
| Original language | English |
|---|---|
| Pages (from-to) | 79-85 |
| Number of pages | 7 |
| Journal | Journal of Materials Engineering |
| Volume | 44 |
| Issue number | 5 |
| DOIs | |
| State | Published - 20 May 2016 |
Keywords
- Carbon fiber
- Epoxy resin
- Interfacial property
- Low current
- Single fiber fragmentation
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