Energy dissipation in determinate steel beams

Abstract

The aim of this study is to predict the amount of energy dissipated in a statically determinate steel beam due to material hysteresis. The case considered is that of a simply supported beam with a centrally applied point load. For any given central-deflection limit history, an analysis is made to determine the load-deformation response. The structural response is built up from the sectional response, which, in turn, is built up from the material response, i.e., a discrete element approach is implemented. This approach allows an in-depth assessment of the stress and strain distributions at sections in the critical regions. Numerical integration is used to determine the cumulative area within ..