Hygro-thermally curvature-stable laminates with non-standard ply orientations

York, C.B. (2011) Hygro-thermally curvature-stable laminates with non-standard ply orientations. In: 18th International Conference on Composite Materials, Jeju Island, South Korea, 21-26 Aug 2011,

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Publisher's URL: http://www.iccm18.org/

Abstract

Stacking sequence configurations for hygrothermally curvature-stable (HTCS) laminates have been recently been identified in 9 classes of coupled laminate with standard ply angle orientations +45, −45, 0 and 90°. All arise from the judicious realignment of the principal material axis of laminate classes with Bending-Twisting and/or Bending- Extension and Twisting-Shearing coupling; Off-axis material alignment of these parent classes gives rise to more complex combinations of mechanical coupling behavior. However, for standard ply angle orientations +45, −45, 0 and 90°, HTCS solutions were found in only 8-, 12-, 16- and 20-ply laminates. This article presents new solutions for non-standard ply angle orientations +60, −60, 0 and 90°, which lead to solutions in all ply number groupings for 10 plies and above, thus offering a possibility for tapered warp-free laminate designs.

Item Type:Conference Proceedings
Additional Information:An updated version of this article is available here: http://eprints.gla.ac.uk/68814/
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:York, Dr Christopher
Authors: York, C.B.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences

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