Fracture Toughness of Multi Walled Carbon Nano Tubes Modfied Polymer Composite in Mode - I

J. V. Sai Prasanna Kumar, G. Raghava, A. Joseph Stanley


In the present work Multi Walled Carbon Nano Tubes were dispersed into Ly 566 with 1%, 3% and 5% by weight and nano composites were manufactured using the wet-layup technique in two different stacking sequences namely 0/90 and 0/0. For the dispersion of the nano tubes into the polymer an ultra sonic bath was utilized to sonicate the Multi Walled Carbon Nano Tubes. The property fracture toughness has been characterized by a using standard double cantilever beam (DCB) specimen to estimate the fracture parameter namely GIC. According to the tests the nano tube filling of the matrix of the composites has a beneficial effect on their interlaminar properties and the strain energy release rate increased significantly over the virgin samples. The broken fracture surfaces of the failed samples were examined with a high resolution scanning electron microscope.

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Journal of Materials Science Research   ISSN 1927-0585 (Print)   ISSN 1927-0593 (Online)

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