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Structural and Multidisciplinary Optimization

Erschienen in:

21.03.2017 | RESEARCH PAPER

Topology optimization of structures with gradient elastic material

verfasst von: Lei Li, Guodong Zhang, Kapil Khandelwal

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 2/2017

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Topology optimization of structures and mechanisms with microstructural length-scale effect is investigated based on gradient elasticity theory. To meet the higher-order continuity requirement in gradient elasticity theory, Hermite finite elements are used in the finite element implementation. As an alternative to the gradient elasticity, the staggered gradient elasticity that requires C ⁰-continuity, is also presented. The solid isotropic material with penalization (SIMP) like material interpolation schemes are adopted to connect the element density with the constitutive parameters of the gradient elastic solid. The effectiveness of the proposed formulations is demonstrated via numerical examples, where remarkable length-scale effects can be found in the optimized topologies of gradient elastic solids as compared with linear elastic solids.

Vorheriger Artikel Interval analysis based robust truss optimization with continuous and discrete variables using mix-coded genetic algorithm

Nächster Artikel Design of energy dissipating elastoplastic structures under cyclic loads using topology optimization

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Titel: Topology optimization of structures with gradient elastic material
verfasst von: Lei Li
Guodong Zhang
Kapil Khandelwal
Publikationsdatum: 21.03.2017
Verlag: Springer Berlin Heidelberg
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 2/2017
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-017-1670-z

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