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Mechanical Characterization of Stitched Foam Sandwich Panel by Varying Thread TPI

Author : Anil Kumar V, R. Santhana Krishnan, Bhargav A and Karthik Aamanchi

Pages : 62-66, DOI:
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The paper deals with the fabrication and flexural properties studies of stitched core foam sandwich structures by varying thread TPI(Twist Per Inch).10 mil silane treated open form E – glass fabric was used as a face sheet. Divinycell foam H-80 was used as a core material. The perforated foam was placed in between the face sheets and hand stitch method was used for stitching the face sheet and the foam by glass yarn (37 1/5) of 3, 3.8, 5.3. The panels were fabricated under Vacuum bag moulding process The flexural strength and flexural deflection of fabricated specimens were determined through three point bending test (ASTM C 393-62). A significant increase in flexural rigidity of foam was observed in the panel stitched with thread of 3 TPI when compared with other layers.

Keywords: Flexural, Open Form, Perforated, hand stitch and Glass Yarn

Article published in International Conference on Advances in Mechanical Sciences 2014, Special Issue-2 (Feb 2014)




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