Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 55, Issue 3, Pages 871-883Publisher
SPRINGER
DOI: 10.1007/s00158-016-1522-2
Keywords
Additive manufacturing; Topology optimization; Design for manufacturing; Printability; Overhang angle; Support structures
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Additive manufacturing (AM) offers exciting opportunities to manufacture parts of unprecedented complexity. Topology optimization is essential to fully exploit this capability. However, AMprocesses have specific limitations as well. When these are not considered during design optimization, modifications are generally needed in post-processing, which add costs and reduce the optimized performance. This paper presents a filter that incorporates the main characteristics of a generic AM process, and that can easily be included in conventional density-based topology optimization procedures. Use of this filter ensures that optimized designs comply with typical geometrical AM restrictions. Its performance is illustrated on compliance minimization problems, and a 2D Matlab implementation is provided.
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