Regulation of notch sensitivity of lattice materials by strut topology

We propose a local reinforcement technique for lattices in the vicinity of stress-raiser such as notch, order to elevate macroscopic strength and ductility. A spatially non-uniform waviness distribution sinusoidally-shaped struts is assumed sensitivity tensile response strut studied by finite element analysis. Optimized lattice structures are determined maximise or ductility from these various distributions. Both hexagonal triangular geometries representative bending-dominated stretching-dominated lattices, respectively.