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Foam filling improved the performance of SLS polymer lattices
Study evaluates SLS polymer lattice architectures with and without polyurethane foam filling, revealing foam integration increases stiffness 40-fold and strength nearly 100% while improving energy.
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Outer-ligament design increases stiffness and broadens bandgaps
Novel auxetic metamaterial designs with enhanced outer ligaments achieve 54.57% higher stiffness and broader elastic bandgaps, resolving traditional trade-offs through geometric optimization.