Study of the mechanical performance of multi-cell composite truss-like lightweight structures based on space group theory

Dongdong Yin; Wensuo Ma; Ziming Cheng; Zhenyu Ma; Ruidong Man; Yonghao Xu; Shufen Lu; Zhenhao Ma

doi:10.1088/2053-1591/ae5d8e

journal article Open Access Apr 27, 2026

Study of the mechanical performance of multi-cell composite truss-like lightweight structures based on space group theory

Dongdong Yin

Wensuo Ma

Ziming Cheng Zhenyu Ma

Ruidong Man Yonghao Xu Shufen Lu Zhenhao Ma

Materials Research Express Vol. 13 No. 8 pp. 085801 · IOP Publishing

View at Publisher Save 10.1088/2053-1591/ae5d8e

Abstract

Abstract

Conventional truss lattices (e.g. Face-Centered Cubic unit cell with
Z
-struts (FCCZ) face inherent trade-offs between load capacity and energy absorption due to stress concentration and abrupt buckling. To address this, we designed an octagonal prism truss-like lightweight structure (TLS) with eightfold rotational symmetry using space group 8 mm operations. Through finite element analysis and experiments on AlSi
10
Mg specimens, we investigated the effect of
Z
-strut length (15–65 mm) on compressive performance under volume-normalized conditions. Increasing base polygon edges from 4 to 8 reduced nodal stress concentration by ∼19.3% and mitigated buckling mismatch. An optimal
Z
-strut length range was identified, balancing axial capacity and stability. Compared to FCCZ, TLS exhibited significantly higher specific strength and energy absorption under both equal-diameter and equal-material conditions, with a 2.1% higher load capacity than ISO structures—offering a robust inverse design paradigm for lightweight lattice structures.

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References

17

[1]

Lu "Study on buckling behavior of multilayer pyramid lattice structures" Mech. Adv. Mater. Struct. (2024) 10.1080/15376494.2023.2284271

[2]

Zhang "Superior compressive performance of CoCrNi-TiC octet plate-lattices Structures" Mater. Lett. (2025) 10.1016/j.matlet.2025.138873

[3]

Song "Mechanical behavior of topology-optimized lattice structures fabricated by additive manufacturing" Materials (2025) 10.3390/ma18153614

[4]

Saadi "Harnessing nature’s design: enhancing buckling strength in lattice structures inspired by Lychniscosida sponge" Virtual Phys. Prototyp. (2025) 10.1080/17452759.2025.2551081

[5]

He "Large-scale experimental study on the mechanical behavior of a steel-UHPC composite truss arch under high compressive stress state after cyclic construction" Eng. Struct. (2025) 10.1016/j.engstruct.2025.119881

[6]

Parsompech "Supportless lattice structure of 316L stainless steel fabricated by material extrusion additive manufacturing: effect of relative density on physical, microstructural and mechanical behaviour" Mater. Sci. Eng. (2024) 10.1016/j.msea.2024.147270

[7]

Guo "Mechanical properties of lattice structures with a central cube: experiments and simulations" Materials (2024) 10.3390/ma17061329

[8]

Zheng "Design and mechanical performance analysis of a novel bionic lattice structure" Mater. Today Commun. (2024) 10.1016/j.mtcomm.2024.110409

[9]

Nguyen "Experimental and numerical evaluation of bio-inspired lattice structures under in-plane compression loading" J. Mech. Sci. Technol. (2024) 10.1007/s12206-024-2201-7

[10]

Bhat "Design, fabrication, and properties evaluation of novel nested lattice structures" Addit. Manuf. (2023) 10.1016/j.addma.2023.103510

[11]

Dong "Ti–6Al–4V truss lattices with a composite topology of double-simple-cubic and body-centered-cubic" Eur. J. Mech. A (2022) 10.1016/j.euromechsol.2021.104486

[12]

Liu "Mechanical properties of a new type of plate–lattice structures" Int. J. Mech. Sci. (2021) 10.1016/j.ijmecsci.2020.106141

[13]

Lou (2004)

[14]

Ma "Compressive and energy absorption characteristics of truss-like lightweight materials based on symmetry group" Mater. Res. Express (2023) 10.1088/2053-1591/acaef2

[15]

Zhang "Multi-objective optimization of mechanical performance of pyramid lattice element" Mech. Sci. Technol. Aerosp. Eng. (2024) 10.13433/j.cnki.1003-8728.20220249

[16]

Thomas "Additively-manufactured metallic micro-lattice materials for high specific energy absorption under static and dynamic loading" Acta Mater. (2016) 10.1016/j.actamat.2016.05.054

[17]

Liu "Compressive properties of Al-Si alloy lattice structures with three different unit cells fabricated via laser powder bed fusion" Materials (2020) 10.3390/ma13132902

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Details

Published: Apr 27, 2026
Vol/Issue: 13(8)
Pages: 085801
License: View

Authors

Funding

Natural Science Foundation of Henan Province Award: 252300420442

Key Scientific Research Project of Colleges and Universities in Henan Province Award: 24B460018

Henan Science and Technology Projects Award: 242102240120

Cite This Article

Dongdong Yin, Wensuo Ma, Ziming Cheng, et al. (2026). Study of the mechanical performance of multi-cell composite truss-like lightweight structures based on space group theory. Materials Research Express, 13(8), 085801. https://doi.org/10.1088/2053-1591/ae5d8e

Study of the mechanical performance of multi-cell composite truss-like lightweight structures based on space group theory

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