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Pham et al. [31] created a polycrystalline lattice superstructure with various crystal interfaces that exhibited failure shear-banding symmetrical to the twin boundary, similar to sliding behavior in metallurgy. Lu et al. [32] compared the hardeni...

Pham et al. [31] developed a polycrystalline lattice superstructure that consisted of multiple crystal interfaces and exhibited failure shear-banding symmetrical to the twin boundary, which is similar to sliding behavior in metallurgy. Lu et al. [32] compared the hardening principle of inclusions hindering dislocation movement with the strengthening mechanism of dual phase lattice structures. The controllability of shear-banding paths allows for control over the deformation pattern and damage mechanisms of lattice superstructures. Researchers [17][33] improved stress platforms and energy absorption efficiency of lattice superstructures by changing crystal interfaces to suppress local shear-banding propagation distance. Wu et al. [34] found that adding dislocation-free nanocrystals to an amorphous matrix inhibited local shear-banding transfer and significantly enhanced material properties. Additionally, defect characteristics of microstructures inspire lattice structure design. Vangelatos et al. [35][36] enhanced specific strength and stiffness of lattices by utilizing contact between adjacent member elements, while Bhuwal et al. [37] controlled local shear-bandings’ evolution by introducing holes of varying sizes, spatial orientations, and topological distribution into periodic lattice structures. Ref [38][39] established multi-scale lattice structure calculation and analysis models of various defect types to study the influence of spatial structural defects on mechanical properties. These typical failure mechanisms derived from microstructure deformation behaviors are crucial for designing new lattice structures with excellent mechanical properties.

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