Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing

This paper presents a hybrid topology optimization method for multipatch fused deposition modeling (FDM) 3D printing to address the process-induced material anisotropy. The ‘multipatch’ concept consists of each printing layer disintegrated into multiple patches with different zig...

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Main Authors: Huangchao Yu, Huajie Hong, Su Cao, Rafiq Ahmad
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/10/3/943
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author Huangchao Yu
Huajie Hong
Su Cao
Rafiq Ahmad
author_facet Huangchao Yu
Huajie Hong
Su Cao
Rafiq Ahmad
author_sort Huangchao Yu
collection DOAJ
description This paper presents a hybrid topology optimization method for multipatch fused deposition modeling (FDM) 3D printing to address the process-induced material anisotropy. The ‘multipatch’ concept consists of each printing layer disintegrated into multiple patches with different zigzag-type filament deposition directions. The level set method was employed to represent and track the layer shape evolution; discrete material optimization (DMO) model was adopted to realize the material property interpolation among the patches. With this set-up, a concurrent optimization problem was formulated to simultaneously optimize the topological structure of the printing layer, the multipatch distribution, and the corresponding deposition directions. An asynchronous starting strategy is proposed to prevent the local minimum solutions caused by the concurrent optimization scheme. Several numerical examples were investigated to verify the effectiveness of the proposed method, while satisfactory optimization results have been derived.
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spelling doaj.art-eb3ccb5e78294e6e854d31753c585f702022-12-21T19:06:27ZengMDPI AGApplied Sciences2076-34172020-02-0110394310.3390/app10030943app10030943Topology Optimization for Multipatch Fused Deposition Modeling 3D PrintingHuangchao Yu0Huajie Hong1Su Cao2Rafiq Ahmad3Institute of Unmanned Systems, National University of Defense Technology, Changsha 410073, ChinaInstitute of Unmanned Systems, National University of Defense Technology, Changsha 410073, ChinaInstitute of Unmanned Systems, National University of Defense Technology, Changsha 410073, ChinaDepartment of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2R3, CanadaThis paper presents a hybrid topology optimization method for multipatch fused deposition modeling (FDM) 3D printing to address the process-induced material anisotropy. The ‘multipatch’ concept consists of each printing layer disintegrated into multiple patches with different zigzag-type filament deposition directions. The level set method was employed to represent and track the layer shape evolution; discrete material optimization (DMO) model was adopted to realize the material property interpolation among the patches. With this set-up, a concurrent optimization problem was formulated to simultaneously optimize the topological structure of the printing layer, the multipatch distribution, and the corresponding deposition directions. An asynchronous starting strategy is proposed to prevent the local minimum solutions caused by the concurrent optimization scheme. Several numerical examples were investigated to verify the effectiveness of the proposed method, while satisfactory optimization results have been derived.https://www.mdpi.com/2076-3417/10/3/943topology optimizationcomputer aided manufacturinganisotropiclevel setmultipatch
spellingShingle Huangchao Yu
Huajie Hong
Su Cao
Rafiq Ahmad
Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
Applied Sciences
topology optimization
computer aided manufacturing
anisotropic
level set
multipatch
title Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
title_full Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
title_fullStr Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
title_full_unstemmed Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
title_short Topology Optimization for Multipatch Fused Deposition Modeling 3D Printing
title_sort topology optimization for multipatch fused deposition modeling 3d printing
topic topology optimization
computer aided manufacturing
anisotropic
level set
multipatch
url https://www.mdpi.com/2076-3417/10/3/943
work_keys_str_mv AT huangchaoyu topologyoptimizationformultipatchfuseddepositionmodeling3dprinting
AT huajiehong topologyoptimizationformultipatchfuseddepositionmodeling3dprinting
AT sucao topologyoptimizationformultipatchfuseddepositionmodeling3dprinting
AT rafiqahmad topologyoptimizationformultipatchfuseddepositionmodeling3dprinting