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Abstract
Low velocity impact behaviour of nano-SiO2 enhanced carbon fibre/epoxy composites for naval applications is reported. Epoxy resin matrix was enhanced by 1- 8 wt% SiO2 nanoparticles, based on industrial surface-modified nanosilica. Impact parameters: force, deformation, energy, damage size were recorded. The most pronounced effect was damage size decrease; e.g. ∼28% recorded by infrared thermography and X-ray computed radiography for 8% nano-SiO2 content. Crack branching and crack deflection, due to the nanoparticles, were observed. Decreases in permanent deformation, by ∼15%, and absorbed energy, by ∼8%, were observed, as well as improved fibre/matrix interfacial strength. Flexural strength peaked at 2–5% at ∼640 MPa and then decreased, probably due to nanoparticle agglomerations. There was very little effect of small nanoparticle contents on impact force, deformation and energy, with only a 6% increase of the peak impact force for 8% nano-SiO2 content.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
COMPOSITES PART B-ENGINEERING
no. 113,
pages 91 - 99,
ISSN: 1359-8368 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Landowski M., Strugała G., Budzik M., Imielińska K.: Impact damage in SiO2 nanoparticle enhanced epoxy – Carbon fibre composites// COMPOSITES PART B-ENGINEERING. -Vol. 113, (2017), s.91-99
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.compositesb.2017.01.003
- Verified by:
- Gdańsk University of Technology
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