CUED Publications database

Moderate speed impact damage to 2D-braided glass-carbon composites

Sutcliffe, MPF and Monroy Aceves, C and Stronge, WJ and Choudhry, RS and Scott, AE (2012) Moderate speed impact damage to 2D-braided glass-carbon composites. Composite Structures, 94. pp. 1781-1792. ISSN 0263-8223

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Hybrid glass-carbon 2D braided composites with varying carbon contents are impacted using a gas gun by impactors of masses 12.5 and 44.5. g, at impact energies up to 50. J. The damage area detected by ultrasound C-scan is found to increase roughly linearly with impact energy, and is larger for the lighter impactor at the same impact energy. The area of whitening of the glass tows on the distal side corresponds with the measured C-scan damage area. X-ray imaging shows more intense damage, at the same impact energy, for a higher-mass impactor. Braids with more glass content have a modest increase in density, decrease in modulus, and reduction in the C-scan area and dent depth at the impact site, particularly at the higher impact energies. Impact damage is found to reduce significantly the compressive strength, giving up to a 26% reduction at the maximum impact energy. © 2012 Elsevier Ltd.

Item Type: Article
Divisions: Div C > Biomechanics
Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:17
Last Modified: 14 Jun 2018 01:55