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DC Field | Value | Language |
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dc.contributor.author | Inam, F. | |
dc.contributor.author | Bhat, B.R. | |
dc.contributor.author | Luhyna, N. | |
dc.contributor.author | Vo, T. | |
dc.date.accessioned | 2020-03-31T08:18:52Z | - |
dc.date.available | 2020-03-31T08:18:52Z | - |
dc.date.issued | 2014 | |
dc.identifier.citation | Express Polymer Letters, 2014, Vol.8, 1, pp.55-61 | en_US |
dc.identifier.uri | http://idr.nitk.ac.in/jspui/handle/123456789/10293 | - |
dc.description.abstract | A novel method for comparing structural health of different types of brittle epoxy nanocomposites filled with carbon nanostructured fillers is presented. Epoxy - 0.2 vol% carbon black (CB) and epoxy - 0.2 vol% carbon nanotube (CNT) nanocomposite bars were prepared by calendering and thermal curing. Nanocomposite bars were subjected to Vickers diamond indentation to produce sub-surface damage. Electrical conductivities were analysed by 4-point method to estimate the structural damage caused by indentation. For comprehensive comparison, fracture toughness and percolation threshold were analysed as well. Because of the systematically induced indentation damage, a sharp decrease of 89% was observed in the electrical conductivity of epoxy - CNT nanocomposite as compared to 25% in the electrical conductivity of epoxy - CB nanocomposite. CNTs impart superior damage sensing capability in brittle nanocomposite structures, in comparison to CB, due to their high aspect ratio (fibrous nature) and high electrical conductivity. BME-PT. | en_US |
dc.title | Comparison of structural health assessment capabilities in epoxy - Carbon black and epoxy - Carbon nanotube nanocomposites | en_US |
dc.type | Article | en_US |
Appears in Collections: | 1. Journal Articles |
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