By using Abaqus finite element software

a systematic simulation study was carried out to investigate the deformation mode

dynamic response

and energy absorption characteristics of the two-dimensional circular curve concave honeycomb multicellular structure under different impact velocities and angles. The results show that: when the impact velocity increases and the impact angle decreases

the energy absorption and platform stress values of the multicellular structure increase; the multicellular structure with an arc angle of 120° has the largest integrated energy absorption and platform stress values; with the increasing of impact velocity

the lateral contraction of the structure intensifies

and the negative Poisson's ratio effect becomes more prominent

so the peak initial stress and total energy absorption increase; with the increasing of impact angle

the lateral tipping tendency of the structure intensifies

and it loses the resistance to the impact; with the increasing of impact angle

the lateral tipping tendency of the structure is intensified

and the impact resistance is lost

so the peak initial stress and the total absorbed energy also decrease. This paper provides theoretical support for further optimizing the mechanical properties of the structure under multiple impact conditions.