Abstract
A new approach to apply the differential quadrature method to the deflection, buckling, and free vibration analysis of beams and plates with various boundary conditions is presented. A different method for application of the beam boundary conditions, proposed earlier by Wang and Bert, is extended to clamped-fixed, simply supported-fixed, and fixed-fixed beams and excellent results are obtained. It is found that the differential quadrature method gives less accurate results for the buckling load when the plate aspect ratio ( a b ) exceeds 2.45 for the cases considered and possible reasons for this are discussed.
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