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Hysteresis in a system driven by either generalized force or displacement variables

Erell Bonnot·Ricardo Romero·Xavier Illa·Lluis Manosa·Antoni Planes·Eduard Vives
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Abstract

We report on experiments aimed at comparing the hysteretic response of a Cu-Zn-Al single crystal undergoing a martensitic transition under strain-driven and stress-driven conditions. Strain-driven experiments were performed using a conventional tensile machine while a special device was designed to perform stress-driven experiments. Significant differences in the hysteresis loops were found. The strain-driven curves show re-entrant behaviour (yield point) which is not observed in the stress-driven case. The dissipated energy in the stress-driven curves is larger than in the strain-driven ones. Results from recently proposed models qualitatively agree with experiments.

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Erell Bonnot, Ricardo Romero, Xavier Illa, Lluis Manosa, Antoni Planes, Eduard Vives. 2007-07-17. Hysteresis in a system driven by either generalized force or displacement variables. https://arxiv.org/abs/cond-mat/0702211

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