Study on Vibro-acoustic Characteristics of Laminated Composite Cylindrical Shell

2021 ◽  
Author(s):  
Wu Jiang-Hai ◽  
Hou Xi-Chen ◽  
Guo Hong-Ci ◽  
Duan Yong ◽  
Zhu Hong-Zhen
Keyword(s):  
Cylindrical Shell ◽  
Laminated Composite ◽  
Composite Cylindrical Shell ◽  
Acoustic Characteristics

Mechanical Response of Laminated Composite Cylindrical Shell Subjected to Radial Patch Loading

2012 ◽  
Vol 229-231 ◽  
pp. 292-296
Author(s):  
Farzin Firouzabadi ◽  
Amran Bin Ayob ◽  
S. Sharifi Teshnizi ◽  
G. Sharifishourabi
Keyword(s):  
Cylindrical Shell ◽  
Radial Displacement ◽  
Close Agreement ◽  
Mechanical Response ◽  
Laminated Composite ◽  
Composite Cylindrical Shell ◽  
Main Character ◽  
Different Types ◽  
Operation Parameters ◽  
Patch Loading

Due to significant amount of applications in industries, composite materials and structures are subjected to many different types of loading. One of the most common types of these loading is radial patch loading. Due to the complexity, calculation of radial shell deflection is the main character of the cylinder behavior when subjected to patch loading. The aim of this study is to investigate the mechanical behavior of composite cylindrical shell subjected to radial patch loading. The radial deflection of the laminated shell is investigated in detail where analytical and finite element methods (FEM) are used. The results through both approaches are compared to validate the accuracy of the analytical method. This is followed by a parametric study to determine the effect of some operation parameters on radial displacement. The results show close agreement between the analytical and numerical methods.

STOCHASTIC THERMAL POST-BUCKLING RESPONSE OF LAMINATED COMPOSITE CYLINDRICAL SHELL PANEL WITH SYSTEM RANDOMNESS

2012 ◽  
Vol 04 (01) ◽  
pp. 1250009 ◽  
Author(s):  
ACHCHHE LAL ◽  
B. N. SINGH ◽  
SUSHIL KALE
Keyword(s):  
Cylindrical Shell ◽  
Order Statistics ◽  
Material Properties ◽  
Laminated Composite ◽  
Composite Cylindrical Shell ◽  
Random System ◽  
Second Order Statistics ◽  
Post Buckling ◽  
Shell Panel ◽  
System Properties

The effect of random system properties on thermal post-buckling temperature of laminated composite cylindrical shell panel with temperature independent (TID) and dependent (TD) material properties subjected to uniform temperature distribution is examined in this study. System properties such as material properties, thermal expansion coefficients and lamina plate thickness are modeled as independent basic random variables. The basic formulation is based on higher-order shear deformation (HSDT) theory with von-Karman nonlinearity using modified C0 continuty. A direct iterative-based C0 nonlinear finite element method (FEM) combined with Taylor series-based mean-centered first-order perturbation technique (FOPT) developed by the authors for composite plate is extended for shell panel with reasonable accuracy to compute second-order statistics of post-buckling temperature of cylindrical shell panel. Typical numerical results for second order statistics (mean and coefficient of variance) of thermal post-buckling temperature of laminated cylindrical shell panel are obtained through numerical examples for various support conditions, amplitude ratios, shell thickness ratios, aspect ratios, lamination lay-up sequences, curvature to length ratios, types of material properties with the effect of random system parameters. The performance of outlined approach has been validated with those results available in the literatures and independent MCS.

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