Theoretical analysis of aluminum honeycomb sandwich panel supported by reinforced concrete wall under low-speed impact load

Abstract Honeycomb materials are widely used across engineering fields. The use of honeycomb sandwich structures as energy dissipation and impact protection materials for reinforced concrete components in the field of civil engineering is a novel concept. Therefore, it is of great significance to study the energy absorption characteristics, dynamic response theoretical model, and collapse energy dissipation theory for the use of honeycomb sandwich structures as protective materials. Based on the large-scale low-speed pendulum impact test and the corresponding finite element model, this study establishes an ideal model for the honeycomb sandwich panel under the impact of a square flat head and gives the corresponding theoretical derivation. At the same time, it puts forward a method to estimate the energy consumption and dynamic crushing distance based on the energy consumption theory angle of the covering layer.