A stress-based discrete layer plate model that assumes a linear distribution of in-plane stresses through the lamina is developed to predict transverse stresses in composite laminates. The model allows for time-varying mass density of a layered monoclinic material and makes no assumptions on through-the-thickness distribution of the displacements. The governing equations are solved by using the finite element method for the spatial domain and Wilson's step forward integration scheme for the time domain. Stresses obtained using the proposed numerical model are verified by comparing the results with those available in the literature for forced vibration response of isotropic and cross-ply laminated composite plates.
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