To investigate the shock resistance of multi-layered pyramidal lattice panels impacted by a ball hammer, we carried out an experiment of 4-layered pyramidal lattices under the impact of a ball hammer, analyzed the collapse deformation process and mode, and put forward the energy absorption mechanism. Our results show that, when subjected to a medium impact of a ball hammer, the final deformation of the multilayered pyramidal lattice panels can be composed of three parts where deformation occurs: head-on, interlayer, and backside, thus forming a "sandwich"-like deformation mode.
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