References of "Gao, Tong"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailA bi-value coding parameterization scheme for the discrete optimal orientation design of the composite laminate
Gao, Tong ULg; ZHANG, Weihong; Duysinx, Pierre ULg

in International Journal for Numerical Methods in Engineering (2012), 91(1), 98-114

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 ... [more ▼]

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. [less ▲]

Detailed reference viewed: 34 (3 ULg)
Full Text
Peer Reviewed
See detailExtensions of the Shape Functions with Penalization Parameterization for Composite-Ply Optimization
Bruyneel, Michaël ULg; Duysinx, Pierre ULg; Fleury, Claude ULg et al

in AIAA Journal (2011), 49(10), 2325-2329

The SFP method proposed is an alternative to the discrete material optimization (DMO) approach developed. Both approaches are an extension of the multiphase topology optimization. Here, SFP is used to ... [more ▼]

The SFP method proposed is an alternative to the discrete material optimization (DMO) approach developed. Both approaches are an extension of the multiphase topology optimization. Here, SFP is used to select composite plies in a set of candidate orientations, in a formulation including ontinuous design variables. [less ▲]

Detailed reference viewed: 61 (12 ULg)