To improve the flexural properties of Beetle Elytron Plates (BEPs) and clarify the effect of the transition arcs (chamfers) between the skins and the trabeculae, the chamfers were set in BEPs, and then the influence of the chamfer on BEPs’ mechanical properties was investigated via experimentation and the Finite Element Method simulation (FEM). The results indicate that the influence of the chamfer on the flexural properties and ductility was most obvious in the Trabecular Beetle Elytron Plates (TBEPs), less obvious in the Honeycomb Plates (HPs) and basically no effect was observed on End-trabecular Beetle Elytron Plates (EBEPs). The chamfer can improve the mechanical stability of EBEPs. As the chamfer diameter increased in the BEPs, the length of the residual trabecular root on the skin increased when failure occurred in the TBEPs. The crack position in the honeycomb walls of the HPs gradually shifted from the skin to the center. The EBEPs continued to exhibit oblique cracks. From the perspective of the force characteristics of these BEPs, combined with numerical simulation, the influence mechanism of the chamfer on their flexural properties was investigated.

为了改善甲壳虫Elytron板（BEP）的弯曲性能并弄清蒙皮和小梁之间的过渡弧（倒角）的影响，在BEP中设置了倒角，然后对该倒角对BEP力学性能的影响为通过调查实验和有限元方法模拟（FEM）。结果表明，倒角对小梁甲虫Elytron板（TBEPs）的弯曲性能和延展性的影响最明显，在蜂窝板（HPs）中不明显，并且对小梁甲虫Elytron板基本没有影响（EBEP）。倒角可以提高EBEP的机械稳定性。随着BEP中倒角直径的增加，当TBEP中发生故障时，皮肤上残留的小梁根的长度增加。HP蜂窝壁中的裂纹位置从皮肤逐渐转移到中心。EBEP继续出现倾斜裂纹。从这些BEP的受力特性的角度，结合数值模拟，