Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing, 210096, China.
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, 510640, China.
Sci Rep. 2017 Jun 30;7(1):4440. doi: 10.1038/s41598-017-03767-w.
To investigate the characteristics of compression, buffering and energy dissipation in beetle elytron plates (BEPs), compression experiments were performed on BEPs and honeycomb plates (HPs) with the same wall thickness in different core structures and using different molding methods. The results are as follows: 1) The compressive strength and energy dissipation capacity in the BEP are 2.44 and 5.0 times those in the HP, respectively, when the plates are prepared using the full integrated method (FIM). 2) The buckling stress is directly proportional to the square of the wall thickness (t). Thus, for core structures with equal wall thicknesses, although the core volume of the BEP is 42 percent greater than that of the HP, the mechanical properties of the BEP are several times higher than those of the HP. 3) It is also proven that even when the single integrated method (SIM) is used to prepare BEPs, the properties discussed above remain superior to those of HPs by a factor of several; this finding lays the foundation for accelerating the commercialization of BEPs based on modern manufacturing processes.
为了研究甲虫鞘翅（BEP）的压缩、缓冲和能量耗散特性，对具有不同芯体结构和不同成型方法的相同壁厚 BEP 和蜂窝板（HP）进行了压缩实验。结果表明：1）采用全一体化成型法（FIM）时，BEP 的抗压强度和能量耗散能力分别是 HP 的 2.44 倍和 5.0 倍；2）屈曲应力与壁厚的平方成正比。因此，对于具有相同壁厚的芯体结构，尽管 BEP 的芯体体积比 HP 大 42%，但其力学性能仍高出 HP 数倍；3）即使采用单一一体化成型法（SIM）制备 BEP，其性能仍比 HP 高出几个数量级，这一发现为基于现代制造工艺加速 BEP 的商业化奠定了基础。
