A level-set-based topology optimization strategy using radial basis functions and a Hilbertian velocity extension

Autor(es)

Andrade, Giovanna C. ; Santos, Sandra A.

• Tipo de documento: Artigo Científico
• Fonte: Applied Mathematical Modelling; v. 111, p. 18-pg., 2022-06-28.

Resumo

This work addresses the structural compliance minimization problem through a level-set -based strategy that rests upon radial basis functions with compact support combined with Hilbertian velocity extensions. A consistent augmented Lagrangian scheme is adopted to handle the volume constraint. The linear elasticity model and the variational problem asso-ciated with the computation of the velocity field are tackled by the finite element method using resources from the FEniCS project. The parameterization mesh constituted by the centers of the radial basis functions may be decoupled from the finite element mesh. A numerical investigation is conducted employing a Python implementation and five bench-mark structures. Aimed at isolating the distinct aspects that compose the proposed strat-egy, the experiments provide grounds to analyze and put into perspective the inherent decisions and the related elements.(c) 2022 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 13/07375-0 - CeMEAI - Centro de Ciências Matemáticas Aplicadas à Indústria
• Beneficiário: Francisco Louzada Neto
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 20/00521-4 - Sobre métodos baseados em conjuntos de nível para otimização topológica estrutural
• Beneficiário: Giovanna Castello de Andrade
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 18/24293-0 - Métodos computacionais de otimização
• Beneficiário: Sandra Augusta Santos
• Modalidade de apoio: Auxílio à Pesquisa - Temático