Unified approach to the characterization of coupled composite laminates: Hygro-thermally curvature-stable configurations

York, C.B. (2011) Unified approach to the characterization of coupled composite laminates: Hygro-thermally curvature-stable configurations. International Journal of Structural Integrity, 2(4), pp. 406-436. (doi: 10.1108/17579861111183920)

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Abstract

New families of hygro-thermally curvature-stable laminates are presented within the framework of a unified approach to laminate design incorporating complex mechanical coupling behaviour, which includes all possible interactions between extension, shearing, bending and twisting. Necessary conditions for hygro-thermally curvature-stable laminates are developed, from which new stacking sequence configurations with standard angle-ply and cross-ply sub-sequences are then derived. All stacking sequence configurations are characterised according to their unique mechanical coupling behaviour, with polar plots used to illustrate the changes in off-axis mechanical coupling behaviour for each laminate family; with respect to extensional, coupling and bending stiffness and the associated lamination parameters. The new stacking sequence configurations are applicable to any orthotropic fibre/matrix system with constant ply thickness throughout and although standard angle-ply and cross-ply combinations are the primary focus of the study, a number of important observations are reported concerning double angle-ply laminates and laminates with non-standard angle-ply orientations.

Item Type:Articles
Keywords:Coupled Laminates, Lamination Parameters, Thermal response, Warp-free, Hygro-thermally Curvature-stable.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:York, Dr Christopher
Authors: York, C.B.
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:International Journal of Structural Integrity
Publisher:Emerald Group Publishing Ltd.
ISSN:1757-9864
ISSN (Online):1757-9872

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