A novel topology optimization method for composite beams

A new topology optimization design method for aircraft composite beam under various loads is proposed. The cross-sectional stiffness characteristics of composite beam with arbitrary geometry are obtained using finite element method. Both of the warping and shear deformation are considered. To obtain better beam cross section, a multi-material optimization model including anisotropic and isotropic materials is employed. The density of candidate material at each element is designated as the design variables and updated with Sequence Linear Programming (SLP) of accurate gradient-based sensitivity. To avoid checkerboard problem, sensitivity filtering approach is used. Topology design of composite beam cross section with weight constraint is presented for square and airfoil cross section under various loads. The results show that the proposed method is suitable for the optimization design of composite beam, and innovative structures could be given. The external loads have great influence on the final topology shape of beam cross section.

• Record URL:
  • https://doi.org/10.1177/0954410015605547
• Record URL:
  • http://pig.sagepub.com/cgi/content/abstract/230/7/1153
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/19966973
• Supplemental Notes:
  • Reprinted by permission of Sage Publications, Ltd.
• Authors:
  • Ren, Yiru
  • Jinwu, Xiang
  • Zheqi, Lin
  • Tiantian, Zhang
• Publication Date: 2016-6

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 1153-1163
• Serial:
  • Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
  • Volume: 230
  • Issue Number: 7
  • Publisher: Sage Publications, Incorporated
  • ISSN: 0954-4100
  • EISSN: 2041-3025
  • Serial URL: http://pig.sagepub.com/

Subject/Index Terms

• TRT Terms: Beams; Composite structures; Optimization; Shear strain; Topology; Warpage
• Subject Areas: Aviation; Vehicles and Equipment;

Filing Info

• Accession Number: 01600836
• Record Type: Publication
• Files: TRIS
• Created Date: May 31 2016 9:18AM