Thermal Postbuckling Behavior of Anisotropic Laminated Cylindrical Shells with Temperature-dependent Properties

AIAA Journal ◽  
2008 ◽  
Vol 46 (1) ◽  
pp. 185-193 ◽  
Author(s):  
Hui-Shen Shen
Keyword(s):  
Cylindrical Shells ◽  
Postbuckling Behavior ◽  
Temperature Dependent ◽  
Thermal Postbuckling ◽  
Temperature Dependent Properties ◽  
Laminated Cylindrical Shells

POSTBUCKLING OF PRESSURE-LOADED PIEZOLAMINATED CYLINDRICAL SHELLS WITH TEMPERATURE DEPENDENT PROPERTIES

2007 ◽  
Vol 07 (01) ◽  
pp. 1-22 ◽  
Author(s):  
HUI-SHEN SHEN ◽  
Y. XIANG
Keyword(s):  
Perturbation Technique ◽  
Cylindrical Shells ◽  
Piezoelectric Actuators ◽  
Control Voltage ◽  
Postbuckling Behavior ◽  
Temperature Dependent ◽  
Singular Perturbation Technique ◽  
Independent Case ◽  
Temperature Dependent Properties ◽  
Shear Deformable

A postbuckling analysis is presented for a shear deformable laminated cylindrical shell with piezoelectric actuators subjected to lateral or hydrostatic pressure combined with electric and thermal loads. The material properties are assumed to be dependent on the temperature. The governing equations are based on higher-order shear deformation shell theory with a von Kármán-Donnell-type of kinematic nonlinearity. The nonlinear prebuckling deformations and initial geometric imperfections of the shell are both taken into account. A singular perturbation technique is employed to determine the buckling pressure and postbuckling equilibrium paths. The numerical illustrations concern the postbuckling behavior of pressure-loaded, perfect and imperfect, cross-ply laminated cylindrical shells with fully covered or embedded piezoelectric actuators under different sets of thermal and electric loading conditions. The results reveal that the temperature rise has a significant effect on the buckling pressure and postbuckling behavior of piezolaminated cylindrical shells when the temperature-dependent properties are taken into account, but it only has a very small effect under temperature-independent case. In contrast, the control voltage has a small effect on the buckling pressure and postbuckling behavior of piezolaminated cylindrical shells.

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