Abstract
The dynamic instability characteristics of eccentrically stiffened plates with cutout subjected to harmonic in-plane partial edge loadings at the plate boundaries are studied using finite element method. The instability regions are determined for a wide range of excitation frequencies with different boundary condition, partial edge loading at different locations, cutout ratios and various parameters of stiffeners using Bolotin's method and Hill's infinite determinants by varying the number, size and location of the stiffeners. In the structural modeling, the plate and the stiffeners are treated as separate elements where the compatibility between these two types of elements is maintained.
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