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论文类型：期刊论文

发表时间：2017-08-15

发表刊物：COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING

收录刊物：SCIE、EI、Scopus、ESI高被引论文、ESI热点论文

卷号：323

页面范围：27-63

ISSN号：0045-7825

关键字：Additive manufacturing; Self-supporting structures; Moving Morphable Component (MMC); Moving Morphable Void (MMV); Topology optimization

摘要：One of the challenging issues in additive manufacturing (AM) oriented topology optimization is how to design structures that are self-supportive in a manufacture process without introducing additional supporting materials. In the present contribution, it is intended to resolve this problem under an explicit topology optimization framework where optimal structural topology can be found by optimizing a set of explicit geometry parameters. Two solution approaches established based on the Moving Morphable Components (MMC) and Moving Morphable Voids (MMV) frameworks, respectively, are proposed and some theoretical issues associated with AM oriented topology optimization are also analyzed. Numerical examples provided demonstrate the effectiveness of the proposed methods. (C) 2017 Elsevier B.V. All rights reserved.