Optimization of Combining Fiber Orientation and Topology for Constant-Stiffness Composite Laminated Plates

Xinxing Tong (), Wenjie Ge (), Xinqin Gao () and Yan Li ()
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Xinxing Tong: Xi’an University of Technology
Wenjie Ge: Northwestern Polytechnical University
Xinqin Gao: Xi’an University of Technology
Yan Li: Xi’an University of Technology

Journal of Optimization Theory and Applications, 2019, vol. 181, issue 2, No 15, 653-670

Abstract: Abstract This paper deals with an efficient optimization method of combining fiber orientation and topology for constant-stiffness composite laminated plates. The optimal topology and fiber orientation can be simultaneously obtained, using the proposed method. To overcome the non-monotonous behaviors derived from directly optimizing fiber orientation, the lamination parameters are selected as design variable. The proposed method mainly includes two steps. Initially, lamination parameters and density are taken as the design variables for determining the fiber orientation and topology shape. A combined optimization model is built based on the penalization theory. The optimal lamination parameter and topology shape can be achieved simultaneously in this step. Then, solving nonlinear equations is transformed into a least squares optimization problem. The optimal fiber orientation is obtained and matched with the optimal lamination parameter. Finally, numerical examples of designing short cantilever beam and compliant inverter are performed to illustrate the validity of this method.

Keywords: Topology optimization; Fiber orientation optimization; Constant-stiffness composite laminated plates; Lamination parameters; 49J35; 74E30; 74P05; 74P15 (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s10957-018-1433-z

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