Axial compression performance of honeycomb structure with diamond origami tube

In order to improve the energy absorption characteristics of the honeycomb structure under axial compression, this paper combines the diamond origami tubes with the honeycomb structure, and a novel origami-based honeycomb structure with a tight arrangement and close bonding is proposed. By comparing connections of diamond polygonal origami honeycombs with different side numbers, a honeycomb structure consisting of diamond triangular origami tube (DTOT) units is established. Experiments and numerical simulations analyze its deformation mode and energy absorption properties under axial compression, and the parametric analysis is also carried out. Based on the classical folding theory, a prediction formula for the mean crushing force for DTOT honeycomb structures is obtained, and its inaccuracies are within 10 % of experiments and simulation findings. The results show that the DTOT honeycomb structure can effectively reduce the initial peak crushing force while maintaining the SEA, and has a good prospect for cushioning and energy absorption applications compared with conventional multicellular and honeycomb structures.