On elastic energy of structures under proportional loading

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Authors

  • A. Gawęcki Institute of Structural Engineering, Poznan University of Technology, Poland

Abstract

The paper concerns the proportional loading of structures made of time independent materials. It has been shown that the elastic energy can be a decreasing function of the load multiplier if unilateral constraints are introduced into an elastic-plastic structure. Results obtained in the work seem to be of importance for the theory of structures and may have some theoretical implications. An exhaustive example illustrates the theory.