论文部分内容阅读
通过控制点阵结构中不同阵点位置空心球的软硬程度建立了交错金属空心球泡沫模型。在此基础上,对比研究了不同冲击条件下,均匀和各种交错金属空心球泡沫的动力学响应特性。重点分析了软硬空心球排布方式对金属空心球泡沫动力学性能的影响。研究结果表明,通过对软硬空心球排布方式的控制,材料可以在一定范围内根据外载条件进行自主调节,以控制金属空心球泡沫内的应力分布,提高了金属空心球泡沫的能量吸收效率。软硬交错空心球模型的建立为实现金属空心球泡沫的自适应设计提供了新的思路。
An interlaced metal hollow-sphere foam model was established by controlling the hardness of the hollow sphere at different lattice positions in the lattice structure. On this basis, the dynamic response characteristics of uniform and various staggered metal hollow spherical foam under different impact conditions were comparatively studied. The influence of soft and hard hollow ball arrangement on kinetic performance of metal hollow sphere foam is analyzed emphatically. The results show that by controlling the arrangement of hard and soft hollow spheres, the material can be self-regulated within a certain range according to the external load conditions to control the stress distribution in the metal hollow sphere foam and improve the energy absorption of the metal hollow sphere foam effectiveness. The establishment of the hard and soft interlaced hollow sphere model provides a new idea for the adaptive design of metal hollow ball foam.