In this paper, a novel plate lattice-filled square honeycomb (PLSH) is proposed in an attempt to improve the quasi-static compression performance and energy absorption of structure. Firstly, the quasi-static compression performance of the 3D-printed PLSH was analyzed through experimental investigation and finite element analysis. The results showed that the compressive strength and energy absorption capacity of the proposed PLSHs are higher than the sum of those of square honeycomb (SH) and plate lattices (PLs) which were tested individually. It can be seen that compressive strength per unit mass σp/ρ${\sigma }_p/\rho$${\sigma }_p/\rho$ and energy absorption per unit mass EM$E_M$$E_M$ by 15%–45% and 51%–151% relative to the SH, respectively, and 65.2%–582% and 78%–196% relative to the PLs, respectively. The strengthening mechanism is that the mutual constraint between the SH and PL stabilizes the buckling and alters the compressive deformation mode of both constituents, resulting in elevating compression performance and energy absorption capability of the PLSH.

在本文中，提出了一种新型板格填充方形蜂窝（PLSH），试图提高结构的准静态压缩性能和能量吸收。首先，通过实验研究和有限元分析，分析了 3D 打印 PLSH 的准静态压缩性能。结果表明，所提出的PLSH的抗压强度和能量吸收能力高于单独测试的方形蜂窝（SH）和板格（PL）的总和。可以看出，单位质量的抗压强度σp/ ρ${\sigma }_p/\rho$${\sigma }_p/\rho$和单位质量的能量吸收乙米${乙}_{米}$$E_M$相对于 SH 分别为 15%–45% 和 51%–151%，相对于 PL 分别为 65.2%–582% 和 78%–196%。强化机制是SH和PL之间的相互约束稳定了屈曲并改变了两种成分的压缩变形模式，从而提高了PLSH的压缩性能和吸能能力。