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10 August 2012
Article (Scientific journals)
A bi-value coding parameterization scheme for the discrete optimal orientation design of the composite laminate
Gao, Tong  ; ZHANG, Weihong; Duysinx, Pierre 
2012 • In International Journal for Numerical Methods in Engineering, 91 (1), p. 98-114
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Keywords :
Composite optimization; Topology optimization; Material selection; Optimal orientation; Binary Coded Parameterization
Abstract :
[en] The discrete optimal orientation design of the composite laminate can be treated as a material selection problem dealt with by continuous topology optimization method. In this work, a new bi-value coding parameterization (BCP) scheme is proposed to this aim. The idea of the BCP scheme is to “code” each material phase using integer values of +1 and -1. Each available material phase has one unique “code” consisting of +1 and/or -1 assigned to design variables. Theoretical and numerical comparisons between the proposed BCP scheme and existing schemes show that the BCP has the advantage of an evident reduction of the number of design variables in logarithmic form. This is very beneficial when the number of candidate materials becomes important. Numerical tests with up to 36 candidate material orientations are illustrated for the first time to indicate the reliability and efficiency of the proposed scheme in solving this kind of problem. It proves that the BCP is an interesting and potential scheme to achieve the optimal orientations for large-scale design problems.
Disciplines :
Mechanical engineering
Aerospace & aeronautics engineering
Author, co-author :
Gao, Tong ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
ZHANG, Weihong
Duysinx, Pierre  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Ingénierie des véhicules terrestres
Language :
English
Title :
A bi-value coding parameterization scheme for the discrete optimal orientation design of the composite laminate
Publication date :
06 July 2012
Journal title :
International Journal for Numerical Methods in Engineering
ISSN :
0029-5981
eISSN :
1097-0207
Publisher :
Wiley, Chichester, United Kingdom
Volume :
91
Issue :
1
Pages :
98-114
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Projet Plan Marchal RW VIRTUALCOMP

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