Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients
The impact mechanical properties of graded hourglass lattice sandwich structures under impact compression were studied using experiments and numerical simulations. The influence of the gradient distribution on the deformation mode, peak load, and energy absorption capacity of the hourglass lattice s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/18/6275 |
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| author | Hexiang Wu Jia Qu Linzhi Wu |
| author_facet | Hexiang Wu Jia Qu Linzhi Wu |
| author_sort | Hexiang Wu |
| collection | DOAJ |
| description | The impact mechanical properties of graded hourglass lattice sandwich structures under impact compression were studied using experiments and numerical simulations. The influence of the gradient distribution on the deformation mode, peak load, and energy absorption capacity of the hourglass lattice sandwich structure under the same impact energy level, different impact masses, and different impact velocities is discussed. The results show that the difference in impact mass and velocity has a significant effect on the impact mechanical properties of the graded hourglass lattice sandwich structure under the same impact energy level. The gradient distribution mode is a factor that requires careful consideration in the design. A reasonable gradient distribution design can control the initial and compression peak loads to achieve similarly low values and improve the load consistency of the hourglass lattice sandwich structure. The total energy absorption of the hourglass lattice sandwich structures with different gradient distributions is the same; however, the energy absorption capacity is different at different deformation stages. When the moving distance is 0.005 m, the gradient hourglass lattice sandwich structures with the mass decline distribution can absorb 1 kJ/kg more energy than the gradient hourglass lattice sandwich structures with the mass increment distribution. When the moving distance is 0.037 m, the mass decline distribution gradient hourglass lattice sandwich structures absorb 1 kJ/kg less energy than the mass increment distribution gradient hourglass lattice sandwich structures. |
| first_indexed | 2024-03-10T22:31:08Z |
| format | Article |
| id | doaj.art-72b371d73b354617a9c5d7f3d315f146 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T22:31:08Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-72b371d73b354617a9c5d7f3d315f1462023-11-19T11:45:21ZengMDPI AGMaterials1996-19442023-09-011618627510.3390/ma16186275Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with GradientsHexiang Wu0Jia Qu1Linzhi Wu2Key Laboratory of Advanced Ship Materials and Mechanics, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of Advanced Ship Materials and Mechanics, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of Advanced Ship Materials and Mechanics, College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, ChinaThe impact mechanical properties of graded hourglass lattice sandwich structures under impact compression were studied using experiments and numerical simulations. The influence of the gradient distribution on the deformation mode, peak load, and energy absorption capacity of the hourglass lattice sandwich structure under the same impact energy level, different impact masses, and different impact velocities is discussed. The results show that the difference in impact mass and velocity has a significant effect on the impact mechanical properties of the graded hourglass lattice sandwich structure under the same impact energy level. The gradient distribution mode is a factor that requires careful consideration in the design. A reasonable gradient distribution design can control the initial and compression peak loads to achieve similarly low values and improve the load consistency of the hourglass lattice sandwich structure. The total energy absorption of the hourglass lattice sandwich structures with different gradient distributions is the same; however, the energy absorption capacity is different at different deformation stages. When the moving distance is 0.005 m, the gradient hourglass lattice sandwich structures with the mass decline distribution can absorb 1 kJ/kg more energy than the gradient hourglass lattice sandwich structures with the mass increment distribution. When the moving distance is 0.037 m, the mass decline distribution gradient hourglass lattice sandwich structures absorb 1 kJ/kg less energy than the mass increment distribution gradient hourglass lattice sandwich structures.https://www.mdpi.com/1996-1944/16/18/6275hourglass lattice sandwich structuresimpact behaviorgradientexperimentsimulation |
| spellingShingle | Hexiang Wu Jia Qu Linzhi Wu Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients Materials hourglass lattice sandwich structures impact behavior gradient experiment simulation |
| title | Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients |
| title_full | Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients |
| title_fullStr | Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients |
| title_full_unstemmed | Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients |
| title_short | Experimental and Numerical Study on Impact Behavior of Hourglass Lattice Sandwich Structures with Gradients |
| title_sort | experimental and numerical study on impact behavior of hourglass lattice sandwich structures with gradients |
| topic | hourglass lattice sandwich structures impact behavior gradient experiment simulation |
| url | https://www.mdpi.com/1996-1944/16/18/6275 |
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