Factors affecting the negative Poisson's ratio of black phosphorus and black arsenic: electronic effects

2021 ◽  
Vol 23 (5) ◽  
pp. 3441-3446
Author(s):  
Yifan Gao ◽  
Minru Wen ◽  
Xin Zhang ◽  
Fugen Wu ◽  
Qinglin Xia ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Black Phosphorus ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
Electronic Effects ◽  
Good Resistance ◽  
Lateral Direction ◽  
Factors Affecting ◽  
Negative Poisson's Ratio

Negative Poisson's ratio (NPR) materials (when stretched longitudinally, the thickness of these materials increases along the lateral direction) are widely used in engineering because of their good resistance to shear, denting, and fracture.

scholarly journals Auxetic Black Phosphorus: A 2D Material with Negative Poisson’s Ratio

Nano Letters ◽  
2016 ◽  
Vol 16 (10) ◽  
pp. 6701-6708 ◽  
Author(s):  
Yuchen Du ◽  
Jesse Maassen ◽  
Wangran Wu ◽  
Zhe Luo ◽  
Xianfan Xu ◽  
...  
Keyword(s):  
Poisson’S Ratio ◽  
Black Phosphorus ◽  
Poisson's Ratio ◽  
Negative Poisson’S Ratio ◽  
2D Material ◽  
Negative Poisson's Ratio

Free vibration and sound insulation of functionally graded honeycomb sandwich plates

2021 ◽  
pp. 109963622110204
Author(s):  
Fenglian Li ◽  
Wenhao Yuan ◽  
Chuanzeng Zhang
Keyword(s):  
Free Vibration ◽  
Poisson’S Ratio ◽  
Functionally Graded ◽  
Poisson's Ratio ◽  
Dynamic Equations ◽  
Sound Insulation ◽  
Sandwich Plates ◽  
Negative Poisson’S Ratio ◽  
Honeycomb Sandwich ◽  
Negative Poisson's Ratio

Based on the hyperbolic tangent shear deformation theory, free vibration and sound insulation of two different types of functionally graded (FG) honeycomb sandwich plates with negative Poisson’s ratio are studied in this paper. Using Hamilton’s principle, the vibration and vibro-acoustic coupling dynamic equations for FG honeycomb sandwich plates with simply supported edges are established. By applying the Navier’s method and fluid–solid interface conditions, the derived governing dynamic equations are solved. The natural frequencies and the sound insulation of FG honeycomb sandwich plates obtained in this work are compared with the numerical results by the finite element simulation. It is proven that the theoretical models for the free vibration and the sound insulation are accurate and efficient. Moreover, FG sandwich plates with different honeycomb cores are investigated and compared. The corresponding results show that the FG honeycomb core with negative Poisson’s ratio can yield much lower frequencies. Then, the influences of various geometrical and material parameters on the vibration and sound insulation performance are systematically analyzed.

Sign in / Sign up

Export Citation Format

Share Document