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| Static compression performance analysis of simple cubic lattice structure |
| Received:September 28, 2022 Revised:October 24, 2022 |
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| DOI：10.7511/jslx20220928001 |
| KeyWord:lattice structure periodic boundary conditions ESO algorithm topology optimization compression |
| Author | Institution |
| 杨孝峰 |
郑州大学 机械与动力工程学院, 郑州 |
| 盛亚鹏 |
郑州大学 机械与动力工程学院, 郑州 |
| 苏宇锋 |
郑州大学 机械与动力工程学院, 郑州 |
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| Abstract: |
| In order to improve the flat pressure performance of simple cubic (SC) lattice structures,a periodic boundary constraint equation is established for an SC unit cell in ABAQUS,and the topological optimization design of an SC unit cell having a periodic boundary condition is carried out by ESO algorithm.Subsequently,the equivalent elastic modulus of optimized SC unit cell is determined,and it is found that the equivalent elastic modulus of the optimized SC unit cell is significantly higher than that of a traditional SC unit cell,and the equivalent compression modulus of the optimized unit cell could be increased by 27.14% by removing the material from the outside,and the equivalent shear modulus of the unit cell could be increased by 46.18%.Finally,the optimized SC unit cell is extended from the unit cell level to the macroscopic structure,and the static flat pressure performance of the three types of SC lattice structures is explored.The results show that: the topology optimization method combining periodic boundary conditions and ESO can significantly improve the resistance of SC structures under static compression.Compared with the traditional SC lattice structure,the resistance of the optimized SC lattice structure is increased by more than 20%. |
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