Average plastic collapse stress model of metallic honeycomb structure under out-of-plan impact load

Based on the theoretical calculation model of a honeycomb structure with static plastic collapse stress and Cowper-Symonds model, a metallic honeycomb structure collapse theory model is established under an impact load with consideration of the strain-hardening effect and the double wall thickness of an adhesive layer. The dynamics of an aluminum alloy honeycomb structure with out-of-plan deformation and under an impact load is simulated using LS-DYNA software. The results show that the plastic collapse theory model can more accurately predict the plastic collapse stress of a honeycomb structure under out-of-plane impact loading by comparing it with a simulation and experimental data.