Stability analysis of laminated cylindrical panels with uncertain material properties

Composite materials experience larger uncertainties in their material properties compared to conventional materials due to a number of parameters involved in their fabrication and manufacturing processes. In the present study, the effect of uncertainty in the material properties on the elastic stability of laminated composite cylindrical panels is attempted. A C0 finite element has been used for deriving the eigenvalue problem using higher-order shear deformation theory. The uncertain material properties are modeled as random variables. A mean-centered first-order perturbation technique is used to find the probabilistic characteristics of the buckling loads with different boundary conditions