An improved soft-kill BESO algorithm for optimal distribution of single or multiple material phases
Article
Article Title | An improved soft-kill BESO algorithm for optimal distribution of single or multiple material phases |
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ERA Journal ID | 3820 |
Article Category | Article |
Authors | |
Author | Ghabraie, Kazem |
Journal Title | Structural and Multidisciplinary Optimization |
Journal Citation | 52 (4), pp. 773-790 |
Number of Pages | 18 |
Year | 2015 |
Publisher | Springer |
Place of Publication | Germany |
ISSN | 1615-147X |
1615-1488 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s00158-015-1268-2 |
Web Address (URL) | http://link.springer.com/article/10.1007%2Fs00158-015-1268-2 |
Abstract | 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. |
Keywords | topology optimization; gradual BESO; multi-material design; continuation approach; soft-kill BESO |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
490304. Optimisation | |
401707. Solid mechanics | |
401706. Numerical modelling and mechanical characterisation | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | School of Civil Engineering and Surveying |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q32vz/an-improved-soft-kill-beso-algorithm-for-optimal-distribution-of-single-or-multiple-material-phases
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