Influence of Through-Thickness Pinning on Composite Shear Properties

This paper describes results from tests to examine the influence of through-thickness pinning on in-plane shear behaviour, measured by tensile loading of +/- 45A degrees specimens. Samples were produced by both aeronautical and marine manufacturing processes. As few previous studies have investigated pinning of marine composites these were also subjected to out-of-plane shear delamination tests. For both carbon/epoxy laminates the pins reduce the apparent in-plane shear modulus and strength. Pins modify the strain field measured by full-field image analysis, and slow damage development. A new damage mechanism, transverse pin cracking, was observed.

Keyword(s)

Z-pinning, Shear, Mode II, Damage, Acoustic emission

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Maurin Romain, Baley Christophe, Cartie Denis D. R., Davies Peter (2012). Influence of Through-Thickness Pinning on Composite Shear Properties. Applied Composite Materials. 19 (6). 853-864. https://doi.org/10.1007/s10443-011-9196-9, https://archimer.ifremer.fr/doc/00113/22390/

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