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

Authors :
Tong, Xinxing
Ge, Wenjie
Gao, Xinqin
Li, Yan
Source :
Journal of Optimization Theory & Applications; May2019, Vol. 181 Issue 2, p653-670, 18p
Publication Year :
2019

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. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00223239
Volume :
181
Issue :
2
Database :
Complementary Index
Journal :
Journal of Optimization Theory & Applications
Publication Type :
Academic Journal
Accession number :
135839998
Full Text :
https://doi.org/10.1007/s10957-018-1433-z