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Erschienen in:
2009 | OriginalPaper | Buchkapitel
Two Methodologies for Stacking Sequence Optimization of Laminated Composite Materials
verfasst von : Dianzi Liu, Vassili Toropov, David Barton, Ozz Querin
Erschienen in: Computational Structural Engineering
Verlag: Springer Netherlands
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Two approaches are examined for seeking the best stacking sequence of laminated composite wing structures with manufacturing constraints: smeared stiffness-based method and lamination parameter-based method. In the first method, minimizing the total number of plies is the objective function at the global level and shuffling the stack of all the layers to satisfy manufacturing constraints is optimized at the local level. The second method introduced in this paper is to use lamination parameters related with out-of-plane stiffness matrix and numbers of ply angle (90, 0, 45/-45) as design variables with considerations of buckling and strength constraints in the top level optimization. Given lamination parameters from top level optimization as objective function for the local level, optimal stacking sequence will be determined to satisfy industrial manufacturing requirements. The results of a three-part wing box example using these two approaches are compared to results from published papers to demonstrate their potencies.