Abstract
The effects of nano-silica (NS) particles inclusion on the tensile, flexural, vibration and damping characteristics of intraply and woven fiber reinforced carbon/Kevlar/epoxy (CKFRE) hybrid composites were experimentally investigated. Test samples were prepared according to ASTM standards for five different weight contents of NS particles (0.5, 1, 1.5, 2.5 and 3 wt%). Experimental modal analysis was performed only for fundamental frequency to measure damping and natural frequency for characterization of vibration properties. Results showed that 20% improvement in tensile strength was seen at NS content of 3 wt%, while flexural strength was increased by 35.7% according to unmodified CKFRE samples. It was concluded that interaction of NS particles with epoxy and fiber leading to improve interfacial stress resulted in a significant effect on dynamic properties in terms of natural frequency and damping ratio.
Original language | English |
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Pages (from-to) | 169-179 |
Number of pages | 11 |
Journal | Composites Part B: Engineering |
Volume | 152 |
DOIs | |
Publication status | Published - 1 Nov 2018 |
Externally published | Yes |
Keywords
- Carbon/Kevlar fiber
- Damping
- Epoxy
- Flexural
- Nano-silica
- Tensile
- Vibration