Aplicação do conceito de derivada topologica na otimização estrutural de problemas da elasticidade

AUTOR(ES)
DATA DE PUBLICAÇÃO

2002

RESUMO

This work deals with the application of the topological derivative to obtain the optimal topology of elastic problems. The topological derivative defines the sensitivity of a cost function, defined over the domain, to the creation of a hole. In this work, the topological derivative is obtained based on shape design sensitivity analysis concepts. In this way, two distinct concepts are connected to perform the topology optimization. Results for the topological optimization of two-dimensional and three-dimensional domains are presented for several cases. These results are in total concordance when compared with analytical solutions and results from the literature for complex domains. The topological gradient is a powerful concept for obtaining optimal topology in elasticity problems. It is important to emphasize that this concept may be applied to other engineering problems such as corrosion, microstructure and fatigue

ASSUNTO(S)

metodo dos elementos finitos otimização estrutural analise de sensibilidade engenharia de software

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