Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures
Based on the advantages of thin-walled tubes and lattice structures in energy absorption and improved crashworthiness, a hybrid structure of lattice-reinforced thin-walled tubes with different cross-sectional cell numbers and gradient densities was constructed, and a high crashworthiness absorber wi...
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MDPI AG
2023-02-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/5/1871 |
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| author | Chenglin Tao Xin Zhou Zeliang Liu Xi Liang Wentao Zhou Huijian Li |
| author_facet | Chenglin Tao Xin Zhou Zeliang Liu Xi Liang Wentao Zhou Huijian Li |
| author_sort | Chenglin Tao |
| collection | DOAJ |
| description | Based on the advantages of thin-walled tubes and lattice structures in energy absorption and improved crashworthiness, a hybrid structure of lattice-reinforced thin-walled tubes with different cross-sectional cell numbers and gradient densities was constructed, and a high crashworthiness absorber with adjustable energy absorption was proposed. The experimental and finite element characterization of the impact resistance of uniform density and gradient density hybrid tubes with different lattice arrangements to withstand axial compression was carried out to investigate the interaction mechanism between the lattice packing and the metal shell, and the energy absorption of the hybrid structure was increased by 43.40% relative to the sum of its individual components. The effect of transverse cell number configuration and gradient configuration on the impact resistance of the hybrid structure was investigated, and the results showed that the hybrid structure showed higher energy absorption than the empty tube, and the best specific energy absorption was increased by 83.02%; the transverse cell number configuration had a greater effect on the specific energy absorption of the hybrid structure with uniform density, and the maximum specific energy absorption of the hybrid structure with different configurations was increased by 48.21%. The gradient density configuration had a significant effect on the peak crushing force of the gradient structure. In addition, the effects of wall thickness, density and gradient configuration on energy absorption were quantitatively analyzed. This study provides a new idea to optimize the impact resistance of lattice-structure-filled thin-walled square tube hybrid structures under compressive loading through a combination of experiments and numerical simulations. |
| first_indexed | 2024-03-11T07:19:15Z |
| format | Article |
| id | doaj.art-06bf06eedb714918aff46f07eeb9be5c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T07:19:15Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-06bf06eedb714918aff46f07eeb9be5c2023-11-17T08:04:06ZengMDPI AGMaterials1996-19442023-02-01165187110.3390/ma16051871Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid StructuresChenglin Tao0Xin Zhou1Zeliang Liu2Xi Liang3Wentao Zhou4Huijian Li5School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, ChinaSchool of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, ChinaSchool of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, ChinaSchool of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, ChinaSchool of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, ChinaSchool of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao 066004, ChinaBased on the advantages of thin-walled tubes and lattice structures in energy absorption and improved crashworthiness, a hybrid structure of lattice-reinforced thin-walled tubes with different cross-sectional cell numbers and gradient densities was constructed, and a high crashworthiness absorber with adjustable energy absorption was proposed. The experimental and finite element characterization of the impact resistance of uniform density and gradient density hybrid tubes with different lattice arrangements to withstand axial compression was carried out to investigate the interaction mechanism between the lattice packing and the metal shell, and the energy absorption of the hybrid structure was increased by 43.40% relative to the sum of its individual components. The effect of transverse cell number configuration and gradient configuration on the impact resistance of the hybrid structure was investigated, and the results showed that the hybrid structure showed higher energy absorption than the empty tube, and the best specific energy absorption was increased by 83.02%; the transverse cell number configuration had a greater effect on the specific energy absorption of the hybrid structure with uniform density, and the maximum specific energy absorption of the hybrid structure with different configurations was increased by 48.21%. The gradient density configuration had a significant effect on the peak crushing force of the gradient structure. In addition, the effects of wall thickness, density and gradient configuration on energy absorption were quantitatively analyzed. This study provides a new idea to optimize the impact resistance of lattice-structure-filled thin-walled square tube hybrid structures under compressive loading through a combination of experiments and numerical simulations.https://www.mdpi.com/1996-1944/16/5/1871crashworthiness3D printingmaterial reinforcementenergy absorptiongradient structure |
| spellingShingle | Chenglin Tao Xin Zhou Zeliang Liu Xi Liang Wentao Zhou Huijian Li Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures Materials crashworthiness 3D printing material reinforcement energy absorption gradient structure |
| title | Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures |
| title_full | Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures |
| title_fullStr | Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures |
| title_full_unstemmed | Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures |
| title_short | Crashworthiness Study of 3D Printed Lattice Reinforced Thin-Walled Tube Hybrid Structures |
| title_sort | crashworthiness study of 3d printed lattice reinforced thin walled tube hybrid structures |
| topic | crashworthiness 3D printing material reinforcement energy absorption gradient structure |
| url | https://www.mdpi.com/1996-1944/16/5/1871 |
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