Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure
The emergence of additive manufacturing technology has enabled the fabrication of advanced structures with intricate geometric topologies. However, additive manufacturing induces geometric defects in as-printed structures which may result in deviation from the parent material’s properties. The defec...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522009765 |
| _version_ | 1828090634449190912 |
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| author | Heran Jia Bin Liu Zeang Zhao Shengyu Duan Panding Wang Hongshuai Lei |
| author_facet | Heran Jia Bin Liu Zeang Zhao Shengyu Duan Panding Wang Hongshuai Lei |
| author_sort | Heran Jia |
| collection | DOAJ |
| description | The emergence of additive manufacturing technology has enabled the fabrication of advanced structures with intricate geometric topologies. However, additive manufacturing induces geometric defects in as-printed structures which may result in deviation from the parent material’s properties. The defects and impaired material properties greatly influence the performance of the fabricated structure. In this paper, the effect of build angle is investigated. The angle-dependency for the geometric defect distribution characteristics is verified through X-ray tomography. The mathematical relationship between the parent material’s properties and the build angle is established. A numerical model is developed for predicting the mechanical performance of laser powder bed fusion fabricated lattice structures proposed by using the experimental results. The positioning geometric defects are introduced into this model to achieve higher predicting accuracy. This work proposes a reliable and low-cost numerical analysis method based on the angle dependence and helps in predicting the mechanical performance of additive-manufactured complex three-dimensional lattice structures. |
| first_indexed | 2024-04-11T05:59:42Z |
| format | Article |
| id | doaj.art-5f326c595eb6457c9235edb83501ba77 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-11T05:59:42Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-5f326c595eb6457c9235edb83501ba772022-12-22T04:41:43ZengElsevierMaterials & Design0264-12752022-12-01224111354Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structureHeran Jia0Bin Liu1Zeang Zhao2Shengyu Duan3Panding Wang4Hongshuai Lei5Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaBeijing Institute of Astronautical Systems Engineering, Beijing 100076, ChinaInstitute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaInstitute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China; Corresponding authors.Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China; Corresponding authors.Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, ChinaThe emergence of additive manufacturing technology has enabled the fabrication of advanced structures with intricate geometric topologies. However, additive manufacturing induces geometric defects in as-printed structures which may result in deviation from the parent material’s properties. The defects and impaired material properties greatly influence the performance of the fabricated structure. In this paper, the effect of build angle is investigated. The angle-dependency for the geometric defect distribution characteristics is verified through X-ray tomography. The mathematical relationship between the parent material’s properties and the build angle is established. A numerical model is developed for predicting the mechanical performance of laser powder bed fusion fabricated lattice structures proposed by using the experimental results. The positioning geometric defects are introduced into this model to achieve higher predicting accuracy. This work proposes a reliable and low-cost numerical analysis method based on the angle dependence and helps in predicting the mechanical performance of additive-manufactured complex three-dimensional lattice structures.http://www.sciencedirect.com/science/article/pii/S0264127522009765Laser powder bed fusionLattice structuresGeometric defectsMechanical performancePositioning geometric defect |
| spellingShingle | Heran Jia Bin Liu Zeang Zhao Shengyu Duan Panding Wang Hongshuai Lei Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure Materials & Design Laser powder bed fusion Lattice structures Geometric defects Mechanical performance Positioning geometric defect |
| title | Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure |
| title_full | Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure |
| title_fullStr | Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure |
| title_full_unstemmed | Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure |
| title_short | Experimental investigation and numerical modeling of laser powder bed fusion process-induced angle-dependent defects in strut-based lattice structure |
| title_sort | experimental investigation and numerical modeling of laser powder bed fusion process induced angle dependent defects in strut based lattice structure |
| topic | Laser powder bed fusion Lattice structures Geometric defects Mechanical performance Positioning geometric defect |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522009765 |
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