Influence of Through-Thickness Pinning on Composite Shear Properties

Type Article
Date 2012-12
Language English
Author(s) Maurin Romain2, Baley Christophe2, Cartie Denis D. R.3, Davies PeterORCID1
Affiliation(s) 1 : IFREMER, Ctr Brest, F-29280 Plouzane, France.
2 : Univ Bretagne Sud, LIMATB, F-56321 Lorient, France.
3 : Cranfield Univ, Polymer Composites Ctr, Bedford MK3 0AL, England.
Source Applied Composite Materials (0929-189X) (Springer), 2012-12 , Vol. 19 , N. 6 , P. 853-864
DOI 10.1007/s10443-011-9196-9
WOS© Times Cited 6
Keyword(s) Z-pinning, Shear, Mode II, Damage, Acoustic emission
Abstract 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.
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