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A new hysteresis model for steel members. (English) Zbl 0946.74032

From the summary: We propose a mathematical model for hysteretic response of steel members. The model is based on a pre-defined skeleton curve, and consists of a linear and a nonlinear region. The linear region is twice the elastic length on the skeleton curve, while the nonlinear region is formed by superimposing an elliptic dissipation function on the skeleton curve. The shape of the proposed dissipation function and the hysteretic loops are compared with experimental results. Good agreement has been noted. Furthermore, it is shown that stiffness degradation can be easily incorporated in the model.

MSC:

74H45 Vibrations in dynamical problems in solid mechanics
74C05 Small-strain, rate-independent theories of plasticity (including rigid-plastic and elasto-plastic materials)
74-05 Experimental work for problems pertaining to mechanics of deformable solids
86A15 Seismology (including tsunami modeling), earthquakes
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References:

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