Analytical solutions using a higher order refined theory for the stability analysis of laminated composite and sandwich plates

2000 ◽  
Vol 10 (4) ◽  
pp. 337-357 ◽  
Author(s):  
T. Kant ◽  
K. Swaminathan
Keyword(s):  
Stability Analysis ◽  
Analytical Solutions ◽  
Laminated Composite ◽  
Higher Order ◽  
Sandwich Plates ◽  
Refined Theory ◽  
The Stability

Stability Analysis of Laminated Soft Core Sandwich Plates Using Higher Order Zig-Zag Plate Theory

2015 ◽  
Vol 22 (11) ◽  
pp. 897-907 ◽  
Author(s):  
H. D. Chalak ◽  
Anupam Chakrabarti ◽  
Abdul Hamid Sheikh ◽  
Mohd. Ashraf Iqbal
Keyword(s):  
Stability Analysis ◽  
Plate Theory ◽  
Higher Order ◽  
Soft Core ◽  
Sandwich Plates

scholarly journals Stability analysis of cylindrical shells subjected to complex loads

2001 ◽  
Vol 23 (4) ◽  
pp. 247-256
Author(s):  
Ngo Huong Nhu
Keyword(s):  
Cylindrical Shell ◽  
Stability Analysis ◽  
Composite Shell ◽  
Laminated Composite ◽  
Numerical Results ◽  
Load Pressure ◽  
Combined Loads ◽  
Analytical Result ◽  
The Stability ◽  
Good Agreement

The paper deals with stability analysis of shell on the basis FEM via Castem 2000. The numerical results of stability problems of cylinders subjected to different loads as compress load, pressure, concentrated and combined loads are compared with analytical result and give a good agreement. The influence of changing radius of the cylindrical shell on the unstable forms and the influence of angles of fibers on unstable behaviour of laminated composite shell are considered. Numerical results and corresponding programs by languages Gibian given in the paper to realize software Castem 2000 can be applied in the design and in the stability analysis of the shell with more complex conditions

Bubble Complex Finite Strip Method in the Stability and Vibration Analysis of Orthotropic Laminated Composite Plates

2020 ◽  
Vol 12 (09) ◽  
pp. 2050106
Author(s):  
Mohammad Sekhavatjou ◽  
Mojtaba Azhari ◽  
Saeid Sarrami-Foroushani
Keyword(s):  
Boundary Conditions ◽  
Vibration Analysis ◽  
Laminated Composite ◽  
Composite Plates ◽  
Higher Order ◽  
Laminated Composite Plates ◽  
Finite Strip ◽  
Finite Strip Method ◽  
The Stability ◽  
Zigzag Theory

In this study, a bubble complex finite strip method (BCFSM) with the higher-order zigzag theory is formulated for mechanical buckling and free vibration analysis of laminated composite plates, including cross-ply and angle-ply laminates. Few studies have been done to obtain the analytical solutions for clamped and free boundary conditions in the longitudinal and transverse edges. Therefore, this study, for the first time, investigates the effects of various boundary conditions on the stability and vibration results of laminated composite plates subjected to axial or pure shear forces with the use of higher-order zigzag theory and BCFSM. Following this, both the interlaminar continuity conditions of transverse shear stresses and the shear-free surface conditions are satisfied by applying a cubic displacement and a zigzag linear varying displacement with the same number of unknowns as the first-order shear deformation theories. Moreover, the effects of width-to-thickness ratio, fiber orientation, number of modes, different dimensional ratios of the plate, and finally, the number of layers are investigated through numerical examples. The bubble shape functions are exploited in the transverse direction to improve the convergence of the method. Finally, the shearing and axial interaction diagrams of composite laminated plates are presented for various types of boundary conditions.

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