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

Ghabraie, Kazem (2015) An improved soft-kill BESO algorithm for optimal distribution of single or multiple material phases. Structural and Multidisciplinary Optimization, 52 (4). pp. 773-790. ISSN 1615-147X

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Accepted version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Civil Engineering and Surveying
Date Deposited: 18 Apr 2016 23:52
Last Modified: 02 Nov 2016 01:48
Uncontrolled Keywords: topology optimization; gradual BESO; multi-material design; continuation approach; soft-kill BESO
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
01 Mathematical Sciences > 0103 Numerical and Computational Mathematics > 010303 Optimisation
09 Engineering > 0913 Mechanical Engineering > 091308 Solid Mechanics
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870302 Metals (e.g. Composites, Coatings, Bonding)
Identification Number or DOI: 10.1007/s00158-015-1268-2

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