fu-smoothdesignof3d-2021.pdf (8.53 MB)
Smooth design of 3d self-supporting topologies using additive manufacturing filter and semdot
journal contribution
posted on 2021-01-01, 00:00 authored by Yun-Fei (Jack) Fu, Kazem GhabraieKazem Ghabraie, Bernard RolfeBernard Rolfe, Yanan WangYanan Wang, Louis ChiuThe smooth design of self-supporting topologies has attracted great attention in the design for additive manufacturing (DfAM) field as it cannot only enhance the manufacturability of optimized designs but can obtain light-weight designs that satisfy specific performance requirements. This paper integrates Langelaar’s AM filter into the Smooth-Edged Material Distribution for Optimizing Topology (SEMDOT) algorithm—a new element-based topology optimization method capable of forming smooth boundaries—to obtain print-ready designs without introducing post-processing methods for smoothing boundaries before fabrication and adding extra support structures during fabrication. The effects of different build orientations and critical overhang angles on self-supporting topologies are demonstrated by solving several compliance minimization (stiffness maximization) problems. In addition, a typical compliant mechanism design problem—the force inverter design—is solved to further demonstrate the effectiveness of the combination between SEMDOT and Langelaar’s AM filter.
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Journal
Applied Sciences (Switzerland)Volume
11Issue
1Pagination
1 - 17Publisher
MDPI AGLocation
Basel, SwitzerlandPublisher DOI
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eISSN
2076-3417Language
engPublication classification
C1 Refereed article in a scholarly journalUsage metrics
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