Open AccessTopology Optimization of Composite Structure Using Bi-Directional Evolutionary Structural Optimization Method
Author(s) -
Xiaorui Sun,
Jie Yang,
Yi Min Xie,
Xiaodong Huang,
Z.H. Zuo
Publication year - 2011
Publication title -
procedia engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.32
H-Index - 74
ISSN - 1877-7058
DOI - 10.1016/j.proeng.2011.07.375
Subject(s) - topology optimization , isotropy , composite number , cantilever , topology (electrical circuits) , stiffness , materials science , fabrication , finite element method , structural engineering , anisotropy , computer science , mathematical optimization , composite material , mathematics , engineering , physics , medicine , alternative medicine , pathology , quantum mechanics , combinatorics
This paper deals with topology optimization of composite structure using Bi-directional Evolutional Structural Optimization (BESO) method. By redefining the criteria of the optimization evolution progress, the proposed method is able to extend current BESO method from isotropic material to anisotropic composite material. The initial modification of BESO method is to allow for inefficient Material Element String (MES) to be removed while efficient MES to be added in the thickness direction of a composite structure. This modification can reduce the chance of high stress concentration in a composite structure and also produce the geometry which is easy to fabricate using fabrication techniques currently available. The results of a cantilever composite laminate under uniform inplane pressure are presented, showing that the proposed method can produce shape and topology for composite structures with optimal structure stiffness
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