Application of quasi-homogeneous anisotropic laminates in grid-stiffened panel design

York, C.B. and Kennedy, D. (2012) Application of quasi-homogeneous anisotropic laminates in grid-stiffened panel design. In: 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Honolulu, Hawaii, 23-26 Apr 2012, pp. 1-23. (doi:10.2514/6.2012-1369)

Abstract

Composite laminates are derived for standard configurations with quasi-homogeneous anisotropic properties, whereby in-plane and out-of-plane stiffness properties are concomitant. Dimensionless parameters, and their relationship to the well-known ply- orientation-dependent lamination parameters, are also developed from which the elements of the extensional and bending stiffness matrices are readily calculated for any fiber/resin properties. The definitive list of laminate configurations for up to 21 plies is presented, together with graphical representations of the lamination parameter design space for standard ply orientations +45, -45, 0 and 90 degrees. Finally, the potential of quasi-homogeneous anisotropic laminates as an optimum design solution for anisogid structures is explored for cases where buckling and strength constraints are both active.

• Item Type: Conference Proceedings
• Keywords: Quasi-Homogeneous, Anisogrid, Optimization, Buckling, Strength Constraints
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: York, Dr Christopher
• Authors: York, C.B., and Kennedy, D.
• Subjects: T Technology > T Technology (General)
• College/School: College of Science and Engineering > School of Engineering
• Copyright Holders: Copyright © 2012 The Authors
• Publisher Policy: Reproduced with permission of the authors

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
66253		53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference in Hawaii, USA	C. B. York	Royal Aeronautical Society	UNSPECIFIED