| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Saint-Sulpice, Luc
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2023Low cycle fatigue lifetime prediction of superplastic shape memory alloy structures ; Low cycle fatigue lifetime prediction of superplastic shape memory alloy structures: Application to endodontic instrumentscitations
- 2023Electric resistivity evolution in NiTi alloys under thermomechanical loading: phase proportioning, elasticity and plasticity effectscitations
- 2023Electric resistivity evolution in NiTi alloys under thermomechanical loading: phase proportioning, elasticity and plasticity effectscitations
- 2022Fatigue life study of superelastic NiTi Shape Memory Alloys using self-heating under cyclic loading methodcitations
- 2019Fatigue analysis of shape memory alloys by self-heating methodcitations
- 2019On the effects of numerical integration on accuracy of microplane modeling of shape memory alloys
- 2018Rotary bending fatigue analysis of shape memory alloyscitations
- 2018Investigation of NiTi based damper effects in bridge cables vibration response: damping capacity and stiffness changescitations
- 2017Fatigue performance of superelastic NiTi near stress-induced martensitic transformationcitations
- 2017On the origin of residual strain in shape memory alloys: Experimental investigation on evolutions in the microstructure of CuAlBe during complex thermomechanical loadings
- 2017A uniaxial constitutive model for superelastic NiTi SMA including R-phase and martensite transformations and thermal effectscitations
- 2015A comprehensive energy approach to predict fatigue life in CuAlBe shape memory alloycitations
- 2015A comprehensive energy approach to predict fatigue life in CuAlBe shape memory alloycitations
- 2015Direct numerical determination of stabilized dissipated energy of shape memory alloys under cyclic tensile loadingscitations
- 2015Direct numerical determination of stabilized dissipated energy of shape memory alloys under cyclic tensile loadingscitations
- 2014Experimental characterisation of three-phase NiTi wires under tensioncitations
- 2013Experimental analysis of Fe-based shape memory alloy behavior under thermomechanical cyclic loadingcitations
- 2012Thermomechanical cyclic behavior modeling of CuAlBe SMA materials and structurescitations
- 2008Multiaxial Cyclic Superelasticity of Shape Memory Alloys: Experiments and Modelization
- 2007A cyclic model for superelastic shape memory alloys
Places of action
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article
Electric resistivity evolution in NiTi alloys under thermomechanical loading: phase proportioning, elasticity and plasticity effects
Abstract
The well-known martensitic transformation is the main feature for almost all shape memory alloys (SMAs) usage. Meanwhile, the practical implementation of SMA in devices is not straightforward due to the evolution of their functional properties in operation. This evolution is mainly due to the different interactions between the martensite transformation (MT) or detwinning and mechanisms such as plasticity. Although these mechanisms are extensively studied by fine and precise techniques (e.g. high energy x-ray diffraction and transmission electron microscopy), their impact on a macroscopic level (usage scale) are not fully clarified. In this work, the effects of some of the most influential mechanisms in a NiTi alloy are investigated by using electric resistivity measurements at macroscopic scale. Distinct phase proportioning approaches are employed to analyze the martensitic transformation kinetic. It is found that, unlike elastic strains, plastic strains are a key influential factor on resistivity variations in SMAs. It is also shown that the use of an assumption of linearity between fraction of stress-induced martensite and strain transformation can lead to unrealistic interpretations of transformation mechanisms in NiTi wires.