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The low velocity impact response of auxetic carbon fibre laminates
Author(s) -
Alderson K. L.,
Coenen V. L.
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200777701
Subject(s) - auxetics , materials science , composite material , indentation , modulus , impact energy , poisson's ratio , poisson distribution , mathematics , statistics
The low velocity impact resistance of auxetic carbon fibre laminates has been compared to that of laminates with matched through‐the‐thickness modulus, but with Poisson's ratios of near zero and positive values. Four impact loads corresponding to major events in the static indentation response were examined and damage was assessed by ultrasonic C‐scans, detailed fractography and measurement of residual properties. It was found that enhancements were seen in resistance to low velocity for the auxetic laminates, but only at low energy levels, indicating some degree of rate dependency. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)