Nonlinear vibration of functionally graded sandwich shallow spherical caps resting on elastic foundations by using first-order shear deformation theory in thermal environment

被引：29
|
作者：
Phuong, Nguyen Thi [1 ]
Nam, Vu Hoai [1 ]
Dong, Dang Thuy [1 ]
机构：
[1] Univ Transport Technol, Fac Civil Engn, Hanoi, Vietnam
来源：
JOURNAL OF SANDWICH STRUCTURES & MATERIALS | 2020年 / 22卷 / 04期
关键词：
Functionally graded sandwich; shallow spherical cap; first-order shear deformation theory; thermal environment; nonlinear vibration; UNIFORM EXTERNAL-PRESSURE; AXISYMMETRICAL RESPONSE; BUCKLING ANALYSIS; SHELLS; INSTABILITY; STABILITY; BEHAVIOR;
D O I：
10.1177/1099636218782645
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A semi-analytical approach to investigate the nonlinear vibration axisymmetric analysis of functionally graded sandwich shallow spherical caps under external pressure resting on elastic foundation in thermal environment is presented. The governing equations are derived by using the first-order shear deformation theory taking into account von Karman geometrical nonlinearity and Pasternak's two-parameter elastic foundation. The motion equations are determined by Galerkin method and the obtained equation is numerically solved by using Runge-Kutta method. Results of nonlinear dynamic responses show the effects of foundation, material, geometric parameters, and temperature change on the nonlinear vibration of shells.
引用
收藏
页码：1157 / 1183
页数：27
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