publication . Article . 2014

Comparison of structural health assessment capabilities in epoxy – carbon black and epoxy – carbon nanotube nanocomposites

Fawad Inam; Badekai Ramachandra Bhat; Nataliia Luhyna; Thuc P. Vo;
Open Access
  • Published: 01 Jan 2014 Journal: Express Polymer Letters, volume 8, pages 55-61 (issn: 1788-618X, Copyright policy)
  • Publisher: Department of Polymer Engineering, Scientific Society of Mechanical Engineering
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 s...
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Subjects
free text keywords: Physical and Theoretical Chemistry, Organic Chemistry, Materials Chemistry, General Chemical Engineering, Polymers and Plastics, Nanocomposites, Carbon nanotubes, material testing, smart polymers, Carbon nanotube, law.invention, law, Indentation, Composite material, Carbon, chemistry.chemical_element, chemistry, Materials science, Epoxy, visual_art.visual_art_medium, visual_art, Percolation threshold, Fracture toughness, Nanocomposite, Carbon black, lcsh:Materials of engineering and construction. Mechanics of materials, lcsh:TA401-492, lcsh:Chemical technology, lcsh:TP1-1185
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