Journal of Theoretical
and Applied Mechanics

38, 2, pp. 403-415, Warsaw 2000

Decohesive carrying capacity of circular sandwich plate

Krzysztof Szuwalski
The problem of critical values of external loadings for a circular plate subject to bending and radial tension is discussed. The deformation process of a perfectly elastic-plastic sandwich plate clamped on a rigid shaft terminates, when radial strain in one of the layers tends to infinity. Then the plate reaches its decohesive carrying capacity, because further increase of loadings leads to inadmissible discontinuity of the radial displacement. For the plate subject to tension and bending (uniformly distributed moment over the outer edge), corresponding curves of elastic and decohesive carrying capacities are found.
Keywords: plate; perfect plasticity; decohesive carrying capacity