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Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/505

Title: Mechanical Behavior of Glass/Epoxy Composites at Liquid Nitrogen Temperature
Authors: Surendra Kumar, M
Sharma, Neeti
Ray, B C
Keywords: Epoxy
Composites
liquid Nitrogen
Mechanical Properties
Thermal Expansion
Superconducting Magnets
Issue Date: 2008
Publisher: Sage
Citation: Journal of Reinforced Plastics and Composites, Vol 27, Iss 9, P 937-944
Abstract: The present experimental investigation deals with the mechanical behaviour of glass/epoxy composites at cryogenic temperature. Woven and chopped E-glass fibres of 50 weight percentage were reinforced with epoxy matrix to prepare the laminated composites. 3-point bend tests were carried out to assess interlaminar fracture behaviour at cryogenic and at ambient conditions. The specimens were tested at a range of 2 mm/min to 500 mm/min crosshead speed to evaluate the sensitivity of mechanical response during loading at these conditions. The mechanical performances of the laminated specimens at cryogenic conditions were compared with room temperature property by using SEM photographs. DSC was carried out to study whether there is any change in glass transition temperature. Glass/epoxy composites were found to be loading rate sensitive. DSC analysis shows increase in glass transition temperature after cryogenic conditioning which may be due to irreversibility of the chain mobility. Phenome...
Description: Copyright for this article belongs to Sage
URI: http://hdl.handle.net/2080/505 http://dx.doi.org/10.1177/0731684407085877
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