On the Relationship Between Plastic Shakedown and the Repeated Loading of Creeping Structures

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Abstract
A theorem is presented which provides an upper bound on the total inelastic energy dissipated in a structure composed of a creeping plastic material subject to variable load. The result provides a generalization of a theorem of Leckie and Ponter [4, 5] for constant load, and provides an indication of the level of loading at which plastic deformation becomes important.

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