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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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Liu, Yinong
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2022Pullout behaviour of shape memory alloy fibres in self-compacting concrete and its relation to fibre surface microtopography in comparison to steel fibrescitations
- 2019Nonuniform transformation behaviour of NiTi in a discrete geometrical gradient designcitations
- 2019Modelling and experimental investigation of geometrically graded shape memory alloys with parallel design configurationcitations
- 2018Effect of thermal annealing on stress relaxation and crystallisation of ion beam sputtered amorphous Si1-xGex thin filmscitations
- 2017Functionally graded shape memory alloyscitations
- 2017Experiments on deformation behaviour of functionally graded NiTi structurescitations
- 2016Investigation of Thermal Expansion Effects on Si-Based MEMS Structurescitations
- 2014Pseudoelastic behaviour of perforated NiTi shape memory plates under tensioncitations
- 2013Finite element computational modelling and experimental investigation of perforated NiTi plates under tensioncitations
- 2013Hystoelastic deformation behaviour of geometrically graded NiTi shape memory alloyscitations
- 2012Mechanical behaviour of architectured NiTi materials in complex loading
- 2011Assessment of tension-compression asymmetry of NiTi using circular bulge testing of thin platescitations
- 2011Modélisation numérique EF du comportement mécanique superélastique de plaques fines planes trouées en NiTi
- 2011Thermally induced damages of PECVD SiNx thin filmscitations
- 2011Etude expérimentale du comportement d'une tôle perforée aléatoirement en NiTi superélastique
- 2009Roundrobin SMA modelingcitations
- 2009Elastohysteresis : un modèle 3D phénoménologique précis pour le comportement superélastique d’Alliage à Mémoire de Forme sous chargements complexes
- 2008Gradient anneal of functionally graded NiTicitations
- 2008Effect of annealing on deformation-induced martensite stabilisation of NiTicitations
- 2008Effect of pseudoelastic cycling on the Clausius-Clapeyron relation for stress-induced martensitic transformation in NiTicitations
- 2007Poisson's Ratio of Low-Temperature PECVD Silicon Nitride Thin Filmscitations
- 2007Design of functionally graded NiTi by heat treatmentcitations
- 2007Process condition dependence of mechanical and physical properties of silicon nitride thin filmscitations
- 2006Hysteretic Behaviour of Ferroelasticity of NiTi in Shearcitations
- 2006Thermal Stability of PECVD SiN/sub x/ Filmscitations
- 2006Influence of Thermomechanical Processing on the Superelastic Properties of a Ni-Rich Nitinol Shape Memory Alloycitations
- 2006Effect of oxidation on the chemical bonding structure of PECVD SiN thin filmscitations
- 2005Characterization of Mechanical Properties of Silicon Nitride Thin Films for MEMS Devices by Nanoindentation
- 2005Effects of deposition temperature on the mechanical and physical properties of silicon nitride thin filmscitations
- 2005On the origin of Luders-like deformation of NiTi shape memory alloyscitations
- 2005Determination of mechanical properties of PECVD silicon nitride thin films for tunable MEMS Fabry-Perot optical filterscitations
- 2005Thermal processing of polycrystalline NiTi shape memory alloyscitations
- 2004Mechanistic simulation of thermomechanical behaviour of thermoelastic martensitic transformations in polycrystalline shape memory alloyscitations
- 2004Hysteretic behaviour of a Cu-Zn-Al single crystal during superelastic shear deformationcitations
- 2004Evaluation Of Elastic Modulus And Stress Gradient Of PECVD Silicon Nitride Thin Films
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document
Etude expérimentale du comportement d'une tôle perforée aléatoirement en NiTi superélastique
Abstract
Cette étude expérimentale présente la réponse complexe observée lors de la traction d’une plaque mince perforée en NiTi superélastique et d’épaisseur 0,1 mm. Les alliages NiTi quasi équiatomiques se déforment via les contraintes induites par la transformation de phase martensitique (A ⇔ M) et montrent un comportement m´ecanique pseudo-´elastique au-del`a d’une contrainte seuil. Lors de l’essai de traction, la présence de trous dans la plaque engendre une inhomogénéité des déformations mais aussi des déplacements hors plans qui s’apparentent à du flambement local. Un dispositif expérimental, constitué de deux pièces massives en verre, est réalisé pour permettre d’éviter ces déplacements hors plans tout en autorisant les mesures de champs optiques.<br/>La présentation du travail aborde les aspects de conception et de validation du dispositif expérimental ainsi qu’un essai de traction d’une plaque trouée en NiTi superélastique avec mesure de champ optique.<br/><br/>Abstract :<br/>This experimental study presents the complex response observed during the tensile test of a holey thin plate of 0.1 mm thickness superelastic NiTi. Near-equiatomic NiTi alloys deform via stress induced A ⇔ M martensitic transformation and exhibit a pseudoelastic mechanical behaviour over a stress<br/>plateau. During the tensile test, the presence of holes induces not only inhomogeneous strains but also out-of-plane displacements which can be considered as local bending. An experimental device, made of<br/>two massive pieces of glass, is realized to avoid those out-of-plane displacements and allow the optical measurements.<br/>This study discusses the different aspects of conception and validation of the experimental device and also a tensile test of a NiTi holey plate with optical measurement.<br/>