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Structural optimisation based on the boundary element and level set methods.

Ullah, B. and Trevelyan, J. and Matthews, P.C. (2014) 'Structural optimisation based on the boundary element and level set methods.', Computers and structures., 137 . pp. 14-30.

Abstract

A new method of structural topology optimisation is proposed in which an evolutionary approach is used with boundary element and level set methods. During the optimisation iterations, the proposed method automatically introduces internal cavities and does not rely on an initial guess topology with pre-existing holes. The zero level set contours describing both the external geometry and the internal cavities are converted to non-uniform rational B-splines (NURBS) for smooth boundary element meshing at each iteration. The optimal geometries generated by the proposed method for two-dimensional cases closely resemble to those available in the literature for a range of benchmark examples in the field of topology optimisation.

Item Type:Article
Keywords:Structural optimisation, Boundary element method, Level set method, NURBS.
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1016/j.compstruc.2014.01.004
Publisher statement:NOTICE: this is the author’s version of a work that was accepted for publication in Computers & Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computers & Structures, 137, 2014, 10.1016/j.compstruc.2014.01.004.
Date accepted:02 January 2014
Date deposited:29 May 2014
Date of first online publication:05 February 2014
Date first made open access:No date available

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