Hygrothermal postbuckling analysis of smart multiscale piezoelectric composite shells

被引：4
作者：
Karimiasl, Mahsa [1 ]
Ebrahimi, Farzad [1 ]
Mahesh, Vinyas [2 ,3 ]
机构：
[1] Imam Khomeini Int Univ, Fac Engn, Dept Mech Engn, Qazvin, Iran
[2] Indian Inst Sci, Dept Aerosp Engn, Bangalore 560012, Karnataka, India
[3] Nitte Meenakshi Inst Technol, Dept Mech Engn, Bangalore 560064, Karnataka, India
来源：
EUROPEAN PHYSICAL JOURNAL PLUS | 2020年 / 135卷 / 02期
关键词：
SHEAR DEFORMATION-THEORY; FREE-VIBRATION ANALYSIS; NONLINEAR FREE-VIBRATION; REFINED PLATE-THEORY; THERMAL BUCKLING ANALYSIS; HIGHER-ORDER SHEAR; ELASTIC FOUNDATIONS; BENDING ANALYSIS; SANDWICH PLATES; SHALLOW SHELL;
D O I：
10.1140/epjp/s13360-020-00137-w
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this article, the hygrothermal postbuckling behaviour of multiscale doubly curved piezoelectric shells (MDCPS) has been evaluated through multiple scales perturbation method. The multiscale composite constituting of polymer/carbon nanotube/fiber and polymer/graphene platelet/fiber (PGF) in accordance with Halpin-Tsai model is considered for evaluation. The kinematics of the MDCPS is assumed to follow third order shear deformation theory (TSDT) and the non-linearity in the strain-displacement relation is adjudged through Von Karman relationship. Further, with the aid of Hamilton's principle the governing equations of motion are derived. The present work studies the load-deflection curves for various distribution patterns such as U (uniform), X, A and O. In addition, the influence of various prominent parameters like applied voltage, magnetic potential, aspect and curvature ratio on the postbuckling characteristics of MDCPS is studied thoroughly.
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页数：21
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