ABSTRACT
This paper presents a study on the vibration, buckling and parametric instability behaviour of a simply supported rectangular plate with a centrally located crack, subjected to in-plane periodic loading. The effects of crack length and orientation are analysed using the finite elements method. The results show that, under tension load, the frequency of the plate initially increases with the load, but then decreases as the load further increases, which leads to local buckling along the crack edge. The size and the orientation of the crack and the loading parameters all have significant effect on the dynamic stability behaviour of the plate under both compressive and tensile loading.
