Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique
A layered hybrid lattice structure consisting of a body-centered cubic (BCC) structure and an N-type structure with a negative Poisson's ratio effect is designed. In order to assess the effect of the position and number of N-type structure layers in the overall lattice structure on the mechanic...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422019214 |
| _version_ | 1797943009739800576 |
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| author | Xin Yang Yu Gong Libin Zhao Jianyu Zhang Ning Hu |
| author_facet | Xin Yang Yu Gong Libin Zhao Jianyu Zhang Ning Hu |
| author_sort | Xin Yang |
| collection | DOAJ |
| description | A layered hybrid lattice structure consisting of a body-centered cubic (BCC) structure and an N-type structure with a negative Poisson's ratio effect is designed. In order to assess the effect of the position and number of N-type structure layers in the overall lattice structure on the mechanical properties, three kinds of hybrid lattice structures with different positions and numbers of N-structure layers are manufactured by using laser powder bed fusion (LPBF) technique. Compression experiments are carried out on the three kinds of layered hybrid lattice structures and the BCC lattice structure for comparisons. The entire loading process is recorded and the deformation pattern of the lattice structure is captured. The experimental results show that the presence of the N-type structure has a significant effect on the deformation pattern of the lattice structure. Comparing the mechanical response and energy absorption efficiency, it is found that the hybrid lattice structure performs better than the BCC structure when the structural strain is small. In addition, finite element models of the N-type structure unit-cell and hybrid lattice structures are established. Numerical simulations are conducted to verify the negative Poisson's ratio behavior of the N-structure and predict the deformation modes of the layered hybrid lattice structure. |
| first_indexed | 2024-04-10T20:17:39Z |
| format | Article |
| id | doaj.art-485740130fb44aff970a2361e51063b1 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:17:39Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-485740130fb44aff970a2361e51063b12023-01-26T04:46:05ZengElsevierJournal of Materials Research and Technology2238-78542023-01-012218001811Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion techniqueXin Yang0Yu Gong1Libin Zhao2Jianyu Zhang3Ning Hu4State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Aerospace Engineering, Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Aerospace Engineering, Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, China; Corresponding author.School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China; College of Aerospace Engineering, Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, China; Corresponding author.College of Aerospace Engineering, Chongqing Key Laboratory of Heterogeneous Material Mechanics, Chongqing University, Chongqing 400044, China; School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, ChinaA layered hybrid lattice structure consisting of a body-centered cubic (BCC) structure and an N-type structure with a negative Poisson's ratio effect is designed. In order to assess the effect of the position and number of N-type structure layers in the overall lattice structure on the mechanical properties, three kinds of hybrid lattice structures with different positions and numbers of N-structure layers are manufactured by using laser powder bed fusion (LPBF) technique. Compression experiments are carried out on the three kinds of layered hybrid lattice structures and the BCC lattice structure for comparisons. The entire loading process is recorded and the deformation pattern of the lattice structure is captured. The experimental results show that the presence of the N-type structure has a significant effect on the deformation pattern of the lattice structure. Comparing the mechanical response and energy absorption efficiency, it is found that the hybrid lattice structure performs better than the BCC structure when the structural strain is small. In addition, finite element models of the N-type structure unit-cell and hybrid lattice structures are established. Numerical simulations are conducted to verify the negative Poisson's ratio behavior of the N-structure and predict the deformation modes of the layered hybrid lattice structure.http://www.sciencedirect.com/science/article/pii/S2238785422019214Layered hybrid lattice structuresDeformation modesMechanical propertiesLaser powder bed fusion |
| spellingShingle | Xin Yang Yu Gong Libin Zhao Jianyu Zhang Ning Hu Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique Journal of Materials Research and Technology Layered hybrid lattice structures Deformation modes Mechanical properties Laser powder bed fusion |
| title | Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique |
| title_full | Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique |
| title_fullStr | Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique |
| title_full_unstemmed | Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique |
| title_short | Compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique |
| title_sort | compressive mechanical properties of layer hybrid lattice structures fabricated by laser powder bed fusion technique |
| topic | Layered hybrid lattice structures Deformation modes Mechanical properties Laser powder bed fusion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422019214 |
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