dynamic stability of moderately thick composite laminated skew plates using finite strip method

The dynamic instability regions of composite laminated skew flat plates subjected to uniform inplane axial endloading are investigated. the inplane loading is assumed as a combination of a timeinvariant component and a harmonic timevarying component uniformly distributed along two opposite panel ends’ width. in case of some loading frequencylitude pairconditions, the model is subjected to instabilities. the dynamic instability margins of the skewed flat panel have been extracted using a developed semianalytical finite strip formulation. the method has been developed based on a fullenergy approach through the principle of the virtual work. the effects of thickness have been included by utilizing a thirdorder reddy type shear deformation theory. the effects of boundary conditions as well as geometry on the instability loadfrequency regions are derived using the bolotin's firstorder approximation. in order to demonstrate the capabilities of the developed method in predicting the structural dynamic behavior, some representative results are obtained and compared with those in the literature wherever available.