Results 11 to 20 of about 8,768 (214)

Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility

open access: yesMaterials & Design, 2021
The origin of negative Poisson's ratio in rutile-type oxides and fluorides is explored through density functional theory (DFT) simulation. The study highlights the dominant role of nearest-neighbor central force interactions, thereby inspiring the design
Y. Yao, Y. Ni, L.H. He
doaj   +1 more source

Numerical analysis of impact resistance of honeycomb structures with different Poisson's ratios

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesThis papers aims to analyze the impact resistance of honeycomb structure with different Poisson's ratio. MethodsBased on the explicit dynamic finite element method, this paper analyzes the dynamic mechanical properties of honeycomb structures ...
Xiaobo GONG   +3 more
doaj   +1 more source

Negative Poisson’s Ratio Lattice Structure with Chiral and Re-Entrant Properties

open access: yesApplied Sciences, 2023
Materials exhibiting negative Poisson’s ratio (NPR) effects possess several advantageous properties, including high specific strength, specific stiffness, and impact resistance.
Yifei Luo   +5 more
doaj   +1 more source

Design and Microscale Fabrication of Negative Poisson’s Ratio Lattice Structure Based on Multi-Scale Topology Optimization

open access: yesMachines, 2023
The current design of negative Poisson’s ratio lattice structures is mainly forward-looking and predominantly dependent on several known deformation patterns.
Ran An, Xueyuan Ge, Miaohui Wang
doaj   +1 more source

TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results

open access: yesMetals, 2022
One of the issues that modern implants face is their high stiffness, coupled with a positive Poisson’s ratio along the implant. This creates certain problems with bone inflammation and implant detachment.
Eduard Farber   +6 more
doaj   +1 more source

Intralayer Negative Poisson's Ratio in 2D Black Arsenic by Strain Engineering

open access: yesSmall Structures, 2023
Negative Poisson's ratio as the anomalous characteristic generally exists in artificial architectures, such as re‐entrant and honeycomb structures.
Jingjing Zhang   +11 more
doaj   +1 more source

Research on the auxetic behavior and mechanical properties of periodically rotating graphene nanostructures

open access: yesNanotechnology Reviews, 2022
Negative Poisson’s ratio (auxetic) material is one of the most widely studied metamaterials, and recent attempts have been made to discover auxeticity in graphene-based and related carbon-based materials.
Liang Yingjing   +4 more
doaj   +1 more source

Design and Mechanical Properties of Negative Poisson’s Ratio Structure-Based Topology Optimization

open access: yesApplied Sciences, 2023
Scholars have shown significant interest in the design and investigation of mechanical metamaterials with a negative Poisson’s ratio as a result of the rapid progress in additive manufacturing technology, giving rise to the concept of metamaterials.
Dongchen Qin   +4 more
doaj   +1 more source

Multiferroicity and giant in-plane negative Poisson’s ratio in wurtzite monolayers

open access: yesnpj Computational Materials, 2022
Monolayers of layered materials, such as graphite and molybdenum dichalcogenides, have been the focus of materials science in the last decades. Here, we reveal benign stability and intriguing physical properties in the thinnest monolayer wurtzite (wz ...
Zhuang Ma   +7 more
doaj   +1 more source

Review of the structural design and mechanical properties of metamaterials with negative Poisson’s ratio [PDF]

open access: yesJournal of Hebei University of Science and Technology
Metamaterials can break through the performance boundaries of traditional materials through artificial structure design, and show unique advantages in the fields of impact resistance, energy absorption and lightweight.
Boxing HOU   +4 more
doaj   +1 more source

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