Local Strengthening Design and Compressive Behavior Study of the Triangular Honeycomb Structure

Additive manufacturing (AM) enables diversity in honeycomb structure configuration, which benefits optimization of the structure. In present study, we proposed two locally enhanced triangular structures to improve in-plane compressive performance by avoiding diagonal fracture band. The behaviors and failure mechanism original made 316L steel were studied experiments numerical simulations. results show that cell-enhanced wall-enhanced possess significantly improved stiffness peak load compared with band along direction is caused buckling cell wall, related its topologic Stress distribution an essential index reflecting a Uniform stress makes fail layer layer, it can Defects such as unmelted metal particles voids AM processing weaken strength plasticity, resulting brittleness fall into pieces.