Study on the formation mechanism of viscoplastic line deposition for predicting filament width
Currently, all popular 3D printing inks exhibit Herschel-Bulkley (HB) fluid characteristics. However, the filament spreading, which reduces printing precision, decelerates the development of complex hydrogel models for engineered tissues or organs. In this study, a finite element model (FEM) is esta...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127524009250 |
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| author | Yifeng Yao Qiang Gao Kaicheng Yu Lizi Qi Zexue Lin Jingfeng Xu Yinze Li Peng Zhang Min Zhu Lihua Lu |
| author_facet | Yifeng Yao Qiang Gao Kaicheng Yu Lizi Qi Zexue Lin Jingfeng Xu Yinze Li Peng Zhang Min Zhu Lihua Lu |
| author_sort | Yifeng Yao |
| collection | DOAJ |
| description | Currently, all popular 3D printing inks exhibit Herschel-Bulkley (HB) fluid characteristics. However, the filament spreading, which reduces printing precision, decelerates the development of complex hydrogel models for engineered tissues or organs. In this study, a finite element model (FEM) is established to investigate the impact of processing and fluid parameters on the spreading of the HB inks. The non-dimensional numbers Re (ratio of inertia to viscosity) and Bo (ratio of gravity to surface tension) are used to analyze the influence of parameters on filament formation. When Re > 0.077 and Bo > 0.15, inertial and gravitational forces significantly alter the pressure gradient near the nozzle, thereby affecting the final spreading width of the filament. Additionally, when the spreading is dominated by surface tension, the ranges of rheological parameters of materials as well as the process parameters in 3D printing can be determined by Re and Bo. Under this parameter range, the error between predicted filament widths and that of the printed filament can be controlled to less than 6.7 %. The spreading of HB inks during printing is accurately predicted. |
| format | Article |
| id | doaj-art-cc4612ced24545e2bb5458ae7b2eef93 |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-cc4612ced24545e2bb5458ae7b2eef932025-01-09T06:12:23ZengElsevierMaterials & Design0264-12752025-01-01249113550Study on the formation mechanism of viscoplastic line deposition for predicting filament widthYifeng Yao0Qiang Gao1Kaicheng Yu2Lizi Qi3Zexue Lin4Jingfeng Xu5Yinze Li6Peng Zhang7Min Zhu8Lihua Lu9School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China; Chongqing Research Institute of HIT, Chongqing 400000, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China; Chongqing Research Institute of HIT, Chongqing 400000, China; Corresponding authors.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China; Chongqing Research Institute of HIT, Chongqing 400000, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China; Chongqing Research Institute of HIT, Chongqing 400000, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China; Chongqing Research Institute of HIT, Chongqing 400000, ChinaSchool of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, ChinaSchool of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China; Chongqing Research Institute of HIT, Chongqing 400000, China; Corresponding authors.Currently, all popular 3D printing inks exhibit Herschel-Bulkley (HB) fluid characteristics. However, the filament spreading, which reduces printing precision, decelerates the development of complex hydrogel models for engineered tissues or organs. In this study, a finite element model (FEM) is established to investigate the impact of processing and fluid parameters on the spreading of the HB inks. The non-dimensional numbers Re (ratio of inertia to viscosity) and Bo (ratio of gravity to surface tension) are used to analyze the influence of parameters on filament formation. When Re > 0.077 and Bo > 0.15, inertial and gravitational forces significantly alter the pressure gradient near the nozzle, thereby affecting the final spreading width of the filament. Additionally, when the spreading is dominated by surface tension, the ranges of rheological parameters of materials as well as the process parameters in 3D printing can be determined by Re and Bo. Under this parameter range, the error between predicted filament widths and that of the printed filament can be controlled to less than 6.7 %. The spreading of HB inks during printing is accurately predicted.http://www.sciencedirect.com/science/article/pii/S0264127524009250Three-dimensional printingAccuracyComputational simulationViscoplastic |
| spellingShingle | Yifeng Yao Qiang Gao Kaicheng Yu Lizi Qi Zexue Lin Jingfeng Xu Yinze Li Peng Zhang Min Zhu Lihua Lu Study on the formation mechanism of viscoplastic line deposition for predicting filament width Materials & Design Three-dimensional printing Accuracy Computational simulation Viscoplastic |
| title | Study on the formation mechanism of viscoplastic line deposition for predicting filament width |
| title_full | Study on the formation mechanism of viscoplastic line deposition for predicting filament width |
| title_fullStr | Study on the formation mechanism of viscoplastic line deposition for predicting filament width |
| title_full_unstemmed | Study on the formation mechanism of viscoplastic line deposition for predicting filament width |
| title_short | Study on the formation mechanism of viscoplastic line deposition for predicting filament width |
| title_sort | study on the formation mechanism of viscoplastic line deposition for predicting filament width |
| topic | Three-dimensional printing Accuracy Computational simulation Viscoplastic |
| url | http://www.sciencedirect.com/science/article/pii/S0264127524009250 |
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