Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression
The compression behavior of the lattice-walled tubes under variable strain rates are investigated by numerical simulation, and the stress-strain relationship of the structure under quasi-static loading is theoretically analyzed. The finite element software LS-DYNA is used to simulate the structure e...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2022-07-01
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| Series: | Defence Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914721000908 |
| _version_ | 1811322879906676736 |
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| author | Gen-zhu Feng Jing Wang Xin-yuan Li Li-jun Xiao Wei-dong Song |
| author_facet | Gen-zhu Feng Jing Wang Xin-yuan Li Li-jun Xiao Wei-dong Song |
| author_sort | Gen-zhu Feng |
| collection | DOAJ |
| description | The compression behavior of the lattice-walled tubes under variable strain rates are investigated by numerical simulation, and the stress-strain relationship of the structure under quasi-static loading is theoretically analyzed. The finite element software LS-DYNA is used to simulate the structure established by the beam element, and the critical impact velocity is obtained when the structure collapses layer by layer. According to the plastic hinge theory and considering the combined action of the beam's bending moment and axial force in the structure, the stress-strain relationship of the structure under quasi-static loading is derived and compared with the experimental results. The numerical simulation results reveal that the structure of the single-layer gradient tube(SGC) does not undergo shear deformation under quasi-static and low-speed impact. The critical speed of the gradient square tube(GS) is higher than that of a cylindrical tube. The theoretical model can correctly reflect the mechanical response of the structure under uniaxial compression. |
| first_indexed | 2024-04-13T13:44:01Z |
| format | Article |
| id | doaj.art-ec23229b46d7461d80a269052f2c3b0e |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-04-13T13:44:01Z |
| publishDate | 2022-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-ec23229b46d7461d80a269052f2c3b0e2022-12-22T02:44:34ZengKeAi Communications Co., Ltd.Defence Technology2214-91472022-07-0118711241138Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compressionGen-zhu Feng0Jing Wang1Xin-yuan Li2Li-jun Xiao3Wei-dong Song4State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaEarthquake Engineering Research Center, China Institute of Water Resources and Hydropower Research, Beijing, 100048, PR ChinaBeijing Research Institute of Automation for Machinery Industry Co., Ltd, Beijing, 100120, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Corresponding author.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, China; Corresponding author.The compression behavior of the lattice-walled tubes under variable strain rates are investigated by numerical simulation, and the stress-strain relationship of the structure under quasi-static loading is theoretically analyzed. The finite element software LS-DYNA is used to simulate the structure established by the beam element, and the critical impact velocity is obtained when the structure collapses layer by layer. According to the plastic hinge theory and considering the combined action of the beam's bending moment and axial force in the structure, the stress-strain relationship of the structure under quasi-static loading is derived and compared with the experimental results. The numerical simulation results reveal that the structure of the single-layer gradient tube(SGC) does not undergo shear deformation under quasi-static and low-speed impact. The critical speed of the gradient square tube(GS) is higher than that of a cylindrical tube. The theoretical model can correctly reflect the mechanical response of the structure under uniaxial compression.http://www.sciencedirect.com/science/article/pii/S2214914721000908Lattice-walled tubesPlastic hinge theoryNumerical simulationCritical velocity |
| spellingShingle | Gen-zhu Feng Jing Wang Xin-yuan Li Li-jun Xiao Wei-dong Song Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression Defence Technology Lattice-walled tubes Plastic hinge theory Numerical simulation Critical velocity |
| title | Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression |
| title_full | Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression |
| title_fullStr | Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression |
| title_full_unstemmed | Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression |
| title_short | Mechanical behavior of Ti–6Al–4V lattice-walled tubes under uniaxial compression |
| title_sort | mechanical behavior of ti 6al 4v lattice walled tubes under uniaxial compression |
| topic | Lattice-walled tubes Plastic hinge theory Numerical simulation Critical velocity |
| url | http://www.sciencedirect.com/science/article/pii/S2214914721000908 |
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