Abstract

In the linear couple-stress theory, three-dimensional elastic stress analysis of a plate is carried out in order to examine the effect of thickness ratio. The problem treated here is the axisymmetric bending of a clamped circular plate subjected to an annularly distributed load. For this analysis, use is made of the indirect fictitious-boundary integral method. From the results, the effects of thickness ratio are investigated. Further, the effects of various material constants, such as the characteristic length and the ratio of bending-twisting moduli, on the mechanical behaviour of a plate are made clear with various thickness ratios.

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