Abstract Honeytubes, a novel type of honeycomb formed by reinforcement with lattice trusses, were reported to exhibit enhanced buckling resistance. However, an in-depth analysis for the compressive performance and energy absorption capacity was lacking. In this paper, the effects of microstructure and tube alignment on compressive properties were studied. Four types of honeytubes were designed based on different topologies, geometries and tube patterns, and fabricated by selective laser sintering (SLS). Out-of-plane compression tests and finite element simulation were performed for the analysis. Results indicated that incorporation of lattice in honeycombs resulted in greater local strain in tubes and tube-rib connections. However, honeytubes exhibited superior energy absorption capability, even surpassing that of some metallic lattices. Balancing the configuration of tubes in honeytubes could ensure enhanced mechanical performance. This work demonstrates that materials designed by capitalizing on micro-topologies can regulate mechanical properties and provide insights for guiding the development of new materials.

中文翻译：

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通过增材制造的空心网格桁架增强蜂窝 (Honeytubes) 的压缩性能：图案化和管对齐效果

摘要 Honeytubes 是一种由格子桁架加固形成的新型蜂窝，据报道具有增强的抗屈曲性。然而，缺乏对压缩性能和能量吸收能力的深入分析。在本文中，研究了微观结构和管子排列对压缩性能的影响。基于不同的拓扑结构、几何形状和管模式设计了四种类型的蜂窝管，并通过选择性激光烧结 (SLS) 制造。进行了平面外压缩测试和有限元模拟以进行分析。结果表明，在蜂窝中加入晶格会导致管子和管肋连接处的局部应变更大。然而，蜂窝管表现出优越的能量吸收能力，甚至超过了一些金属晶格。平衡蜂窝管的配置可以确保增强的机械性能。这项工作表明，利用微拓扑设计的材料可以调节机械性能，并为指导新材料的开发提供见解。