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Hysteresis in a system driven by either generalized force or displacement variables: martensitic phase transition in single-crystalline Cu-Zn-Al
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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 reentrant behavior 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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BONNOT, Erell, ROMERO, Ricardo, ILLA I TORTÓS, Xavier, MAÑOSA, Lluís, PLANES VILA, Antoni, VIVES I SANTA-EULÀLIA, Eduard. Hysteresis in a system driven by either generalized force or displacement variables: martensitic phase transition in single-crystalline Cu-Zn-Al. _Physical Review B_. 2007. Vol. 76, núm. 6, pàgs. 064105-1-064105-5. [consulta: 4 de febrer de 2026]. ISSN: 0163-1829. [Disponible a: https://hdl.handle.net/2445/10573]