Effect of surface stress and surface-induced stress on behavior of piezoelectric nanobeam

2018 ◽  
Vol 39 (7) ◽  
pp. 953-966 ◽  
Author(s):  
Yanmei Yue ◽  
Kaiyu Xu ◽  
Xudong Zhang ◽  
Wenjing Wang
Keyword(s):  
Surface Stress ◽  
Induced Stress ◽  
Piezoelectric Nanobeam ◽  
Effect Of Surface

Melting Temperature of FeO under Pressure

2013 ◽  
Vol 717 ◽  
pp. 184-187
Author(s):  
Shuai Zhang ◽  
Lei Chen
Keyword(s):  
Phase Diagram ◽  
Melting Temperature ◽  
Surface Stress ◽  
Clapeyron Equation ◽  
Metallurgical Processes ◽  
Pressure Phase ◽  
Effect Of Surface ◽  
Volume Difference

The melting temperature-pressure phase diagram [Tm(P)-P] for wustite (FeO) is predicted through the Clapeyron equation where the pressure-dependent volume difference is modeled by introducing the effect of surface stress induced pressure. FeO plays an important role in many metallurgical processes and in the Earths mantle mineralogy. FeO is also of great interest in the field of state solid physics and chemistry because of its electrical, magnetic, structural and non-stoichiometric properties.

Surface Effects on the Buckling of Piezoelectric Nanobeams

2012 ◽  
Vol 486 ◽  
pp. 519-523 ◽  
Author(s):  
Kai Fa Wang ◽  
Bao Lin Wang
Keyword(s):  
Shear Deformation ◽  
Electric Potential ◽  
Surface Stress ◽  
Surface Elasticity ◽  
Beam Theory ◽  
Surface Effects ◽  
Residual Surface Stress ◽  
Buckling Behavior ◽  
Stress Surface ◽  
Piezoelectric Nanobeam

In this paper, we analyze the influence of surface effects including residual surface stress, surface piezoelectric and surface elasticity on the buckling behavior of piezoelectric nanobeams by using the Timoshenko beam theory and surface piezoelectricity model. The critical electric potential for buckling of piezoelectric nanobeams with different boundary condition is obtained analytically. From the results, it is found that the surface piezoelectric reduces the critical electric potential. However, a positive residual surface stress increases the critical electric potential. In addition, the shear deformation reduces the critical electric potential, and the influence of shear deformation become more significant for a stubby piezoelectric nanobeam.

Effect of surface stress on the asymmetric yield strength of nanowires

2008 ◽  
Vol 103 (12) ◽  
pp. 123527 ◽  
Author(s):  
Weixu Zhang ◽  
Tiejun Wang ◽  
Xi Chen
Keyword(s):  
Yield Strength ◽  
Surface Stress ◽  
Effect Of Surface

The effect of surface stress on the reconstruction of the Si(111) surface

1986 ◽  
Vol 168 (1-3) ◽  
pp. 46-51 ◽  
Author(s):  
E. Pearson ◽  
T. Halicioglu ◽  
W.A. Tiller
Keyword(s):  
Surface Stress ◽  
Effect Of Surface

POSTBUCKLING OF PIEZOELECTRIC NANOBEAMS WITH SURFACE EFFECTS

2012 ◽  
Vol 04 (02) ◽  
pp. 1250018 ◽  
Author(s):  
YUHANG LI ◽  
CHI CHEN ◽  
BO FANG ◽  
JIAZHONG ZHANG ◽  
JIZHOU SONG
Keyword(s):  
Electric Field ◽  
Significant Role ◽  
Energy Method ◽  
Material Properties ◽  
Surface Stress ◽  
Surface Elasticity ◽  
Surface Effects ◽  
Surface Material ◽  
Residual Surface Stress ◽  
Piezoelectric Nanobeam

Surface effects, including surface elasticity, surface piezoelectricity and residual surface stress, on the postbuckling of piezoelectric nanobeams due to an electric field are investigated using an energy method in this paper. The critical buckling voltage and amplitude are obtained analytically in terms of the bulk and surface material properties and geometric parameters. The results show that surface effects play a significant role in the postbuckling of piezoelectric nanobeams. It is found that the influences of surface piezoelectricity and residual surface stress are more prominent than the surface elasticity. These results might be helpful for designing piezoelectric nanobeam-based devices.

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