 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13288 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8164
|
| In English (Mech. Solids): | | 5124 |
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| B. Hao, Z.J. Yan, G.N. Li, and Y. Han, "Study on Mechanical Properties and Energy Absorption of PA12 Topological Lattice Structures Prepared by Selective Laser Sintering," Mech. Solids. 60 (4), 3271-3286 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
4 |
Pages |
3271-3286 |
| DOI |
10.1134/S0025654425601946 |
| Title |
Study on Mechanical Properties and Energy Absorption of PA12 Topological Lattice Structures Prepared by Selective Laser Sintering |
| Author(s) |
B. Hao (Northeastern University, Shenyang, 110819 China; Northeastern University at Qinhuangdao, Qinhuangdao, 066004 China; Key Laboratory of Vibration and Control of Aeronautical Power Equipment of Ministry of Education, Shenyang, 110819 China)
Z.J. Yan (Northeastern University, Shenyang, 110819 China; Northeastern University at Qinhuangdao, Qinhuangdao, 066004 China, 1455791620@qq.com)
G.N. Li (Northeastern University, Shenyang, 110819 China; Northeastern University at Qinhuangdao, Qinhuangdao, 066004 China)
Y. Han (Northeastern University, Shenyang, 110819 China; Northeastern University at Qinhuangdao, Qinhuangdao, 066004 China) |
| Abstract |
With the continuous advancement of additive manufacturing (AM) technology, Lattice
structures have become a research hotspot due to their excellent lightweight characteristics and multifunctionality. In this study, topology optimization and selective laser sintering (SLS) technology are
innovatively combined to design eight novel lightweight lattice structures (FCL, VL, EML, FQL,
VFCL, VFQL, EFCL, and EFQL) by eight complex boundary load conditions, which breaks through
the dependence of the traditional combinatorial method on geometrical intersection points. Mean-while, the typical BCC structure is introduced as a reference. Quasi-static compression experiments
were carried out on the prepared topological lattice structures in order to deeply investigate their
mechanical properties and energy absorption. The results show that the mechanical properties of VL
and VFQL structures are better than the other topological lattice structures, and the FCL and VFQL
structures have the most energy absorption per unit volume. The EFCL structure has similar mechanical properties as the VL structure, but the EFCL structure is more stable than the VL structure. All
topology-optimized structures show better mechanical properties and energy absorption than BCC
structures, which fully demonstrates the feasibility of choosing topology-optimized designed lattice
structural units. This study provides theoretical basis and practical guidance for the design and fabrication of high-performance polymer lattice structures. |
| Keywords |
Selective Laser Sintering (SLS), topology optimization, PA12, mechanical properties, energy absorption |
| Received |
24 April 2025 | Revised |
07 May 2025 | Accepted |
08 June 2025 |
| Link to Fulltext |
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