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The role of the interface in foam-bearing glass-epoxy composites subjected to impact loading

Venkatraman, S and Kishore, * (1997) The role of the interface in foam-bearing glass-epoxy composites subjected to impact loading. In: Composite Interfaces, 5 (1). pp. 55-67.

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foam, either stacked together as three layers (MC) or inserted at three different positions (3L) while arranging the stacking sequence during the fabrication of glass fiber-epoxy composites, form the subject of investigation. This stacking variation resulted in a different interfacial area between these foam materials and the glass-epoxy regions in the laminates. This area in designed to be maximum for the 3L variety. The energy of impact being high enough to cause development of the crack in the samples, how the change in interfacial area affects the traverse of the crack front and the failure feature of the laminated composite are reported in the form of photomacrographs in this work. The results point to significant changes for the impact data, like for instance the peak load attained by the different samples, through thickness crack propagation and tensile fracture features on the non-impacted end for the plain variety, separation about the mid-zone for the MC laminates and two or more layer separations for the 3L variety. The separation for the foam-bearing systems occur invariably at the interface and here again one of the (two identical) interfaces only is chosen for the separation.

Item Type: Journal Article
Publication: Composite Interfaces
Publisher: Brill
Additional Information: Copyright of this article belongs to Brill.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 22 Jun 2011 05:58
Last Modified: 08 Jul 2011 08:07
URI: http://eprints.iisc.ac.in/id/eprint/38546

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