Indexed by:期刊论文

Date of Publication:2017-08-15

Journal:COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING

Included Journals:SCIE、EI、Scopus、ESI高被引论文、ESI热点论文

Volume:323

Page Number:27-63

ISSN No.:0045-7825

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

Abstract: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.