Indian Journal of Science and Technology
Year: 2019, Volume: 12, Issue: 27, Pages: 1-9
S. Chethan1*, S. Suresha1 and Govardhan Goud2
1Department of Mechanical Engineering, ATME College of Engineering, Mysuru – 570028, Karnataka, India; [email protected], [email protected]
2Department of Mechanical Engineering, Bahubali College of Engineering, Sravanabelagola, Hassan – 573135, Karnataka, India; [email protected]
*Author for correspondence
Department of Mechanical Engineering, ATME College of Engineering, Mysuru – 570028, Karnataka, India; [email protected]
Objective: To characterize dynamic response of Epoxy composites reinforced with optimally treated Luffa Cylindrica fibres and Silicon Carbide particulates. Methods: Hand Lay-up technique is used for composite fabrication. Two layer of Luffa Cylindrica fibres and 0% to 7% by weight, as decided by Central Composite Design of Experimental technique, of Silicon Carbide particulates are reinforced. The composites are subjected to Dynamic Mechanical Analysis with temperature ramped from 26°C to 160°C and 1Hz frequency. Findings: About 2300 MPa high storage modulus is noticed within temperature range of 30°C to 70°C. Low loss modulus of 282.35 MPa is observed for composites with 3.5wt% Silicon Carbide at glass transition temperature of 80°C. Improvement: Inclusion of Silicon Carbide particulates has yielded lower damping ratio and higher thermal stability of 95.62°C.
Keywords: Design of Experiments, Dynamic Mechanical Analysis, Epoxy, Luffa Cylindrica, Silicon Carbide
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