Comparison of Static and Dynamic Hysteresis Curves

by Robert D. Hansen,

Serial Information: Journal of the Engineering Mechanics Division, 1966, Vol. 92, Issue 5, Pg. 87-114

Document Type: Journal Paper


Hysteretic force-deflection curves of a single-story laboratory structure made of mild structural steel were obtained experimentally for both static and dynamic loading conditions. The dynamic loading consisted of a sinusoidal force at about 3 cps applied to the roof of the structure. Maximum fiber strains up to 9 times the yield strain were realized. A strain softening type of modification of the steel was observed during the experiments with subsequent strain ageing occurring between experiments. Differences between static and dynamic hysteretic force-deflection curves were found to be smaller than changes in the static curves caused by the material modifications during repeated loading.

Subject Headings: Steel structures | Comparative studies | Hysteresis | Curvature | Displacement (mechanics) | Static loads | Strain hardening and softening | Repeated loads

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