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An improved soft-kill BESO algorithm for optimal distribution of single or multiple material phases

journal contribution
posted on 2015-06-16, 00:00 authored by Kazem GhabraieKazem Ghabraie
Finding the optimum distribution of material phases in a multi-material structure is a frequent and important problem in structural engineering which involves topology optimization. The Bi-directional Evolutionary Structural Optimization (BESO) method is now a well-known topology optimization method. In this paper an improved soft-kill BESO algorithm is introduced which can handle both single and multiple material distribution problems. A new filtering scheme and a gradual procedure inspired by the continuation approach are used in this algorithm. Capabilities of the proposed method are demonstrated using different examples. It is shown that the proposed method can result in considerable improvements compared to the normal BESO algorithm particularly when solving problems involving very soft material or void phase.

History

Journal

Structural and multidisciplinary optimization

Volume

52

Issue

4

Pagination

773 - 792

Publisher

Springer

Location

Berlin, Germany

ISSN

1615-147X

eISSN

1615-1488

Language

eng.

Publication classification

C Journal article; C1.1 Refereed article in a scholarly journal

Copyright notice

2015, Springer-Verlag Berlin Heidelberg