Nonlinear static and dynamic hygrothermal buckling analysis of imperfect functionally graded porous cylindrical shells

被引:72
|
作者
Foroutan, Kamran [1 ]
Shaterzadeh, Alireza [1 ]
Ahmadi, Habib [1 ]
机构
[1] Shahrood Univ Technol, Fac Mech & Mechatron Engn, Shahrood, Iran
关键词
FGP cylindrical shells; Hygrothermal loading; Nonlinear dynamic buckling; Nonlinear static buckling; Imperfection; VIBRATION CHARACTERISTICS; MECHANICAL STABILITY;
D O I
10.1016/j.apm.2019.07.062
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper investigates the analytical and semi-analytical approaches for the nonlinear dynamic and static hygrothermal buckling analysis of imperfect functionally graded porous (FGP) cylindrical shells under hygrothermal loading. Effect of the von Korman strain-displacement kinematic nonlinearity is included in the constitutive laws of the shell. Utilizing the Galerkin method, the nonlinear vibration problem has been solved. The fourth-order Runge-Kutta method is used to find the nonlinear dynamic hygrothermal buckling responses. To validate the results, comparisons are made with the available solutions for both nonlinear dynamic and static hygrothermal buckling of cylindrical shells. The effect of material parameters and various geometrical characteristics on the nonlinear dynamic and static hygrothermal buckling behavior of the system is investigated. (C) 2019 Elsevier Inc. Ali rights reserved.
引用
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页码:539 / 553
页数:15
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