Results 41 to 50 of about 421,473 (291)

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

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

The Vibration Isolation Design of a Re-Entrant Negative Poisson’s Ratio Metamaterial

open access: yesApplied Sciences, 2023
An improved re-entrant negative Poisson’s ratio metamaterial based on a combination of 3D printing and machining is proposed. The improved metamaterial exhibits a superior load-carrying and vibration isolation capacity compared to its traditional ...
Xu Gao   +4 more
doaj   +1 more source

Static characteristics and engineering applications of micro negative Poisson’s ratio bolt

open access: yesRock and Soil Mechanics, 2022
Compared with traditional small deformation bolt materials, the negative Poisson’s ratio (NPR) bolt/cable material has excellent mechanical properties such as large elongation, high strength, high toughness, high constant resistance, and energy ...
TAO Zhi-gang   +7 more
doaj   +1 more source

Study of Mechanical Properties of Three-Dimensional Framed Plate Protective Structures with Negative Poisson’s Ratio

open access: yesJournal of Marine Science and Engineering, 2023
In this paper, the negative Poisson’s ratio and rigidity of a protective structure are improved to allow the structure to exert a negative Poisson’s ratio effect in multiple directions and to enhance the structural load-carrying capacity. Therefore, a 3D
Weijun Lin   +4 more
doaj   +1 more source

Two-phase topology optimization for metamaterials with negative Poisson’s ratio [PDF]

open access: yesComposite structures, 2023
Although recent developments in 3D printing technology have made it possible to fabricate metamaterials with characteristic mechanical properties, it is not easy to fabricate complex shapes containing cavities.
Daichi Akamatsu   +5 more
semanticscholar   +1 more source

Effect of Axial Deformation on Elastic Properties of Irregular Honeycomb Structure

open access: yesChinese Journal of Mechanical Engineering, 2021
Irregular honeycomb structures occur abundantly in nature and in man-made products, and are an active area of research. In this paper, according to the optimization of regular honeycomb structures, two types of irregular honeycomb structures with both ...
Ning Wang, Qingtian Deng
doaj   +1 more source

MICROSTRUCTURE DESIGN AND MECHANICAL PROPERTIES ANALYSIS OF POROUS BONE WITH NEGATIVE POISSION’S RATIO (MT)

open access: yesJixie qiangdu, 2022
In view of the large difference between the elastic modulus of human bone structure and metal materials and the difficulty of control, the goal is to reduce or eliminate the “stress shielding” effect in a wide span, introduce a negative Poisson’s ratio ...
YE JianHua   +5 more
doaj  

In-plane crashworthiness of re-entrant hierarchical honeycombs with negative Poisson’s ratio

open access: yesComposite structures, 2019
Both auxetic structures and hierarchical honeycombs are marked with lightweight and excellent mechanical properties. Here, we combine the characteristics of auxetic structures and hierarchical honeycombs, and propose two re-entrant hierarchical ...
H. Tan   +5 more
semanticscholar   +1 more source

Half-negative Poisson’s ratio in graphene+ with intrinsic Dirac nodal loop

open access: yesCell Reports Physical Science, 2022
Summary: Carbon materials have attracted extensive attention in the past decades due to the rich configurations and outstanding properties. Numerous efforts have been dedicated to obtaining two-dimensional (2D) materials inheriting the properties of ...
Linfeng Yu   +4 more
doaj   +1 more source

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