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- W2049519508 abstract "This paper proposes a new adaptive method for topology optimization of structures, by using independent error control for the separated displacement and material density fields. Since the arrangement of the density points is unnecessarily associated with the analysis mesh in the topology optimization based on analysis-separated density interpolation, the refinements of each field can be separately implemented. Here, the analysis mesh is refined to improve the computational accuracy of the displacement field and the associated strain field within certain local regions (e.g. the regions around concentrated loading points and displacement restrictions), while the density field is refined in the regions between fully solid and void phases to improve the geometrical description quality of design boundaries. With such a strategy, the refinements of the analysis mesh and the density field are naturally separated and not bond together anymore. Actually, each refinement process is independently performed only when and where necessary. Numerical examples show that the proposed method can achieve high-quality and high-accuracy optimal solutions comparable to those obtained with fixed globally fine analysis meshes and fine distributed density points, but with much less computational cost." @default.
- W2049519508 created "2016-06-24" @default.
- W2049519508 creator A5023566434 @default.
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- W2049519508 date "2014-04-01" @default.
- W2049519508 modified "2023-10-14" @default.
- W2049519508 title "Adaptive topology optimization with independent error control for separated displacement and density fields" @default.
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- W2049519508 doi "https://doi.org/10.1016/j.compstruc.2014.01.008" @default.
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