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Mechanical properties balance in novel Z-pinned sandwich panels: out-of-plane properties.

By Andrea I. Marasco, Denis D. R. Cartié, Ivana K. Partridge and Amir Rezai

Abstract

The paper presents the first complete set of test results obtained from quasi- static measurements of the out-of-plane tension, shear and compression properties of novel XCor ™ and K-Cor™ flat sandwich panels. The cured panels were composed of 0.75mm thick quasi-isotropic IM7/8552 skins, separated by 12.7 mm thick Rohacell® foam core containing 0.51 mm diameter carbon fibre pins (Z- Fiber®), arranged in a truss pattern at pin angle of either 22° or 30° to the vertical. To obtain a suitable baseline comparison, the equivalent set of properties was measured for Nomex honeycomb core panels sandwiched by the same composite skins. The novel Z-pinned cores are found to exhibit higher specific stiffness than conventional sandwich cores, but lower

Publisher: Elsevier Science B.V., Amsterdam.
Year: 2005
DOI identifier: 10.1016/j.compositesa.2005.03.029
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/842
Provided by: Cranfield CERES
Journal:

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