Pre- and post-buckling analysis of FG cylindrical nanoshells in thermal environment considering the surface stress effect

2019 ◽  
Vol 6 (9) ◽  
pp. 095067 ◽  
Author(s):  
S Blooriyan ◽  
R Ansari ◽  
A Darvizeh ◽  
R Gholami ◽  
H Rouhi
Keyword(s):  
Surface Stress ◽  
Thermal Environment ◽  
Buckling Analysis ◽  
Stress Effect ◽  
Surface Stress Effect ◽  
Post Buckling

Surface stress effect in mechanics of nanostructured materials

2011 ◽  
Vol 24 (1) ◽  
pp. 52-82 ◽  
Author(s):  
Jianxiang Wang ◽  
Zhuping Huang ◽  
Huiling Duan ◽  
Shouwen Yu ◽  
Xiqiao Feng ◽  
...  
Keyword(s):  
Nanostructured Materials ◽  
Surface Stress ◽  
Stress Effect ◽  
Surface Stress Effect

Surface stress effect on the pull-in instability of circular nanoplates

2014 ◽  
Vol 102 ◽  
pp. 140-150 ◽  
Author(s):  
R. Ansari ◽  
R. Gholami ◽  
M. Faghih Shojaei ◽  
V. Mohammadi ◽  
S. Sahmani
Keyword(s):  
Surface Stress ◽  
Stress Effect ◽  
Surface Stress Effect

Surface Stress Effect on the Pull-In Instability of Hydrostatically and Electrostatically Actuated Rectangular Nanoplates With Various Edge Supports

2012 ◽  
Vol 134 (4) ◽  
Author(s):  
R. Ansari ◽  
R. Gholami ◽  
M. Faghih Shojaei ◽  
V. Mohammadi ◽  
M. A. Darabi
Keyword(s):  
Boundary Conditions ◽  
Governing Equation ◽  
Surface Stress ◽  
Plate Thickness ◽  
Stress Effect ◽  
Residual Surface Stress ◽  
Electrostatically Actuated ◽  
Stress Effects ◽  
Size Dependent ◽  
Surface Stress Effect

This paper is aimed to investigate the size-dependent pull-in behavior of hydrostatically and electrostatically actuated rectangular nanoplates including surface stress effects based on a modified continuum model. To this end, based on the Gurtin–Murdoch theory and Hamilton's principle, the governing equation and corresponding boundary conditions of an actuated nanoplate are derived; the step-by-step linearization scheme and the differential quadrature (GDQ) method are used to discretize the governing equation and associated boundary conditions. The effects of the thickness of the nanoplate, surface elastic modulus and residual surface stress on the pull-in instability of the nanoplate are investigated. Plates made of two different materials including aluminum (Al) and silicon (Si) are selected to explain the variation of the pull-in voltage and pressure with respect to plate thickness.

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