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In the present paper the Preisach model of hysteresis is applied to model
cyclic behavior of elasto-plastic material. Rate of loading and viscous
effects will not be considered. The problem of axial loading of
rectangular cross section and cyclic bending of rectangular tube (box)
will be studied in details. Hysteretic stress-strain loop for prescribed
history of stress change is plotted for material modeled by series
connection of three unite element. Also moment-curvature hysteretic loop
is obtained for a prescribed curvature change of rectangular tube (box).
One chapter of the paper is devoted to results obtained by FEM using
Finite Element Code ABAQUS. All obtained results clearly show advantages
of the Preisach model for describing cyclic behavior of elasto-plastic
material.
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