ArticleMaterials (Basel, Switzerland)2022
A Modified Three-Dimensional Negative-Poisson-Ratio Metal Metamaterial Lattice Structure.
Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Comprehensive study of the influence of reinforcements on the deformation mechanism and energy absorption performance of auxetic structure.Scientific reports · 2026Article
- Research Progress of Additively Manufactured Metallic Lattice Structures.Micromachines · 2025Review
- Mechanical Properties and Energy Absorption Characteristics of a Combined Gradient BCC Lattice Structure: A Numerical Study.Materials (Basel, Switzerland) · 2025Article
- Experimental Study of Auxetic Structures Made of Re-Entrant ("Bow-Tie") Cells.Materials (Basel, Switzerland) · 2024Article
- Metamaterials of Auxetic Geometry for Seismic Energy Absorption.Materials (Basel, Switzerland) · 2023Article
- DDSM: Design-Oriented Dual-Scale Shape-Material Model for Lattice Material Components.Materials (Basel, Switzerland) · 2022Article
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4 authors.
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Abstract
Mechanical metamaterials are of interest to researchers because of their unique mechanical properties, including a negative Poisson structure. Here, we study a three-dimensional (3D) negative-Poisson-ratio (NPR) metal metamaterial lattice structure by adding a star structure to the traditional 3D concave structure, thus designing three different angles with a modified NPR structure and control structure. We further study the mechanical properties via finite element numerical simulations and show that the stability and stiffness of the modified structures are improved relative to the control structure; the stability decreases with increasing star body angle. The star angle has the best relative energy absorption effect at 70.9°. The experimental model is made by selective laser melting (SLM) technology (3D printing), and the compression experiment verification used an MTS universal compressor. The experimental results are consistent with the changing trend in finite element simulation.
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