In this paper, novel dual scale hybrid mechanical metamaterials consisting of simple cubic structure (SC), body-centered cubic structure (BCC), face-centered cubic structure (FCC) unit cells at different scale levels were designed and proposed for impact energy absorption, where one large type A unit cell and eight (2 $\times$ 2 $\times$ 2) small periodicspatially architected type B unit cells with half size of type A unit cell along X, Y and Z directions were integrated together for harvesting final hybrid metamaterials. Comparisons of specific energy absorption performances between novel hybrid mechanical metamaterials and constituent simple single type of unit cell lattice during compression process were performed through experimental investigation, where the failure and energy absorption process were recorded using the digital camera. Afterwards, finite element analysis (FEA) was performed and compared with experimental results for investigating the mechanical benefits of novel hybrid Plate-lattice mechanical metamaterials, it was found that the novel hybrid plate-lattice mechanical metamaterials can generate enhanced specific strength, specific stiffness and elevated energy absorption performances indicators, demonstrated promising industrial application potentials as energy-absorbing materials and structures for aerospace, vehicles, transport industrial sections.

本文设计了新颖的双尺度混合机械超材料，其由简单的立方结构（SC），体心立方结构（BCC），面心立方结构（FCC）的不同尺度水平的单元格构成，并提出了吸收冲击能量的建议，其中一个大型A型单位电池和八个（2 $\times$ 2 $\times$2）将小型周期性空间结构化的B型单元电池与A型单元电池沿X，Y和Z方向尺寸减半的方式整合在一起，以收获最终的混合超材料。通过实验研究比较了新型混合机械超材料与组成简单单一类型的晶胞晶格之间的特定能量吸收性能，并使用数字相机记录了失效和能量吸收过程。之后，进行了有限元分析（FEA），并与实验结果进行了比较，以研究新型混合板格机械超常材料的机械优势，发现新型混合板格机械超常材料可产生增强的比强度，