Journal
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
Volume 324, Issue -, Pages 149-169Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cma.2017.05.026
Keywords
Topology optimization; Level set; Structural complexity; Length scale control; Structural skeleton
Funding
- National Key Research and Development Plan [2016YFB0201600]
- National Natural Science Foundation [11402048, 11372004]
- Program for Changjiang Scholars, Innovative Research Team in University (PCSIRT)
- 111 Project [B14013]
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In topology optimization design, specific requirements over the complexity of component geometry often need to be satisfied for practical purposes. In this paper, with the introduction of a novel complexity control measure built on the structural skeletons of solid and void regions, an explicit structural complexity control approach for the topology optimization of continuum structures is proposed under the framework of level-set representation. The use of skeletons enables us to control the minimum sizes of structural holes so as to meet the manufacturing demands. Through numerical comparison with the cases that have been investigated implicitly, we show that the proposed approach is an effective tool to control the structural complexity in an explicit way. (C) 2017 Elsevier B.V. All rights reserved.
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