Pseudoelasticity and the strain-memory effect in an Ag-45 at. pct Cd alloy

Krishnan, RV; Brown, L. C.

doi:10.1007/bf02648694

Cited by 79 publications

(26 citation statements)

References 14 publications

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“…This leads to serrations, or "teeth," on the overall load-elongation curve. Stick-slip interface motion and serrations of the loadelongation diagram have been observed experimentally in shape-memory alloys [21], [22], [25]. The overall shape of the hysteresis loop is in qualitative agreement with these experimental results, much more so than in the model with interfacial energy.…”

Section: Introductionsupporting

confidence: 77%

“…Hysteresis is largely confined to the beginning and the end of the loop, and is small in the middle range of strains. This does not resemble typical experimental behavior [21], [22], [25], where one observes a smaller load drop and a thicker hysteresis loop. The present model fails to capture important qualitative aspects of hysteresis.…”

Section: The Case With Interfacial Energycontrasting

confidence: 70%

“…Observe the overall substantial width of the hysteresis loop, which resembles results of tensile tests in certain shape memory alloys [21], [22]. The most striking and unexpected characteristic is the presence of oscillations in the end load (serrations).…”

Section: The Case Without Interfacial Energy: Stick-slip Phenomenonsupporting

confidence: 60%

“…In the last twenty years, a number of researchers have attempted to describe formation of microstructure and hysteresis in crystalline solids within the framework of elasticity theory [1], [2], [6], [7], [14], [21], [22], [28], [29]. A common approach involves minimization of a nonconvex elastic energy for the material, following the pioneering analysis of Ericksen [10].…”

Section: Introductionmentioning

confidence: 99%

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Hysteresis and Stick-Slip Motion of Phase Boundaries in Dynamic Models of Phase Transitions

Vainchtein

Rosakis

1999

J. Nonlinear Sci.

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Summary. We investigate hysteretic behavior in two dynamic models for solid-solid phase transitions. An elastic bar with a nonconvex double-well elastic energy density is subjected to time-dependent displacement boundary conditions. Both models include inertia and a viscous stress term that provides energy dissipation. The first model involves a strain-gradient term that models interfacial energy. In the second model this term is omitted. Numerical simulations combined with analytical results predict hysteretic behavior in the overall end-load versus end-displacement diagram for both models. The hysteresis is largely due to metastability and nucleation; it persists even for very slow loading when viscous dissipation is quite small. In the model with interfacial energy, phase interfaces move smoothly. When this term is omitted, hysteresis is much more pronounced. In addition, phase boundaries move in an irregular, stick-slip fashion. The corresponding load-elongation curve exhibits serrations, in qualitative agreement with certain experimental observations in shape-memory alloys.

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Section: Introductionsupporting

confidence: 77%

Section: The Case With Interfacial Energycontrasting

confidence: 70%

Section: The Case Without Interfacial Energy: Stick-slip Phenomenonsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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Hysteresis and Stick-Slip Motion of Phase Boundaries in Dynamic Models of Phase Transitions

Vainchtein

Rosakis

1999

J. Nonlinear Sci.

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“…The transition is accompanied by the reversible evolution of large high successive inelastic strains which leads to the superelasticity in thermomechanical loads. Studies on single crystals studies report a lots of experimental data to understand the rules which provoke the motion of the austenite/martensite interfaces during mechanical tensile loading [1][2][3][4]. However if these rules are applied to grains inside a polycrystal it gives a crude simplification.…”

Section: Introductionmentioning

confidence: 99%

Intragranular austenite orientation evolution of a Cu-Al-Be SMA during an in-situ tensile test

Berveiller

Malard

Patoor

2009

ESOMAT 2009 - 8th European Symposium on Martensitic Transformations

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Abstract. We used synchrotron radiation to study the local behaviour of individual grains embedded in a polycrystal. First the existing methods have been extended for the first time to the case of SMA by taking into account the phase transformation. Then it was applied to determine the rotation of different grains during an in-situ tensile test. Results are discussed in comparison with the occurrence of the martensitic transformation in the grain and with respect to their mean orientation.

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Diffraction Analysis at the Meso and Micro Scale During the Mechanically Induced Martensite Phase Transformation

Malard

Géandier

Wright³

et al. 2013

Icomat

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Pseudoelasticity and the strain-memory effect in an Ag-45 at. pct Cd alloy

Cited by 79 publications

References 14 publications

Hysteresis and Stick-Slip Motion of Phase Boundaries in Dynamic Models of Phase Transitions

Hysteresis and Stick-Slip Motion of Phase Boundaries in Dynamic Models of Phase Transitions

Intragranular austenite orientation evolution of a Cu-Al-Be SMA during an in-situ tensile test

Diffraction Analysis at the Meso and Micro Scale During the Mechanically Induced Martensite Phase Transformation

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