Temperature dependence of critical stress and pseudoelasticity in a Fe–Mn–Si–Cr pre-rolled alloy

Baruj, A.; Bertolino, G.; Troiani, Horacio Esteban

doi:10.1016/j.jallcom.2010.04.123

Cited by 47 publications

(28 citation statements)

References 18 publications

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“…Two Fe-based SMA compositions were considered. The corresponding experimental results developed by Jemal et al (2009) and Baruj et al (2010) were considered for the identification of the material parameters and the model validation, respectively. Heterogeneous loading was obtained by applying the same aforementioned loading on a holed plate.…”

Section: Resultsmentioning

confidence: 99%

“…The first validation step of the model formulation, its numerical integration and its implementation into Abaqus Ò , was designed for various homogeneous thermomechanical loadings in comparison with two different data sets from the results of experiments carried out by Jemal et al (2009) and Baruj et al (2010). The experimental results were considered for two Fe-based SMA having different chemical compositions and, consequently, different thermomechanical behaviors and material parameters.…”

Section: Case Of Homogeneous Thermomechanical Loadingmentioning

confidence: 99%

“…Similarly, material data for the second alloy, labeled Fe-SMA2 (Baruj et al, 2010), are given in Tables 4 and 5. Following experimental test protocol, a tension test was applied at different constant temperatures (initial temperatures) followed by unloading to reach zero stress, and a heating to a temperature higher than 600°C in order to recover the transformation strain. Finally the setup was cooled to room temperature (Figure 4).…”

Section: Case Of Homogeneous Thermomechanical Loadingmentioning

confidence: 99%

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A constitutive model for Fe-based shape memory alloy considering martensitic transformation and plastic sliding coupling: Application to a finite element structural analysis

Khalil

Mikolajczak

Bouby

et al. 2012

Journal of Intelligent Material Systems and Structures

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In this article, we propose a finite element numerical tool adapted to a Fe-based shape memory alloy structural analysis, based on a developed constitutive model that describes the effect of phase transformation, plastic sliding, and their interactions on the thermomechanical behavior. This model was derived from an assumed expression of the Gibbs free energy taking into account nonlinear interaction quantities related to inter- and intragranular incompatibilities as well as mechanical and chemical quantities. Two scalar internal variables were considered to describe the phase transformation and plastic sliding effects. The hysteretic and specific behavior patterns of Fe-based shape memory alloy during reverse transformation were studied by assuming a dissipation expression. The proposed model effectively describes the complex thermomechanical loading paths. The numerical tool derived from the implicit resolution of the nonlinear partial derivative constitutive equations was implemented into the Abaqus® finite element code via the User MATerial (UMAT) subroutine. After tests to verify the model for homogeneous and heterogeneous thermomechanical loadings, an example of Fe-based shape memory alloy application was studied, which corresponds to a tightening system made up of fishplates for crane rails. The results we obtained were compared to experimental ones.

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Section: Resultsmentioning

confidence: 99%

Section: Case Of Homogeneous Thermomechanical Loadingmentioning

confidence: 99%

Section: Case Of Homogeneous Thermomechanical Loadingmentioning

confidence: 99%

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A constitutive model for Fe-based shape memory alloy considering martensitic transformation and plastic sliding coupling: Application to a finite element structural analysis

Khalil

Mikolajczak

Bouby

et al. 2012

Journal of Intelligent Material Systems and Structures

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“…Early studies have shown very restricted pseudoelastic behavior [184][185][186], usually related to low shape recovery properties. However, recent developments on these alloys related to the introduction of NbC precipitates [187,188] and pre-deformation at intermediate temperatures [171,189] resulted in materials with excellent shape memory properties and extended pseudo-elastic ranges [190][191][192]. In particular, Sawaguchi et al [193] showed that a Fe-Mn-Si-Cr alloy containing a small amount of tiny NbC precipitates could be deformed by cycling between tension and compression, reaching a SDC of 80 % for cycles with 1 % deformation amplitude.…”

Section: Dynamic and Recoverable Stabilization Of Cualbementioning

confidence: 99%

Shape memory alloys as an effective tool to damp oscillations

Torra¹,

Isalgué

Lovey

et al. 2015

J Therm Anal Calorim

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The SMA was studied for their macroscopic application in damping for civil engineering. The study is a synthesis and includes an outline of the models required for the SMA simulation and some case studies using the finite element analysis methods. This work is an overview that focuses in the mitigation of the oscillations in structures induced by earthquakes, and for a reduction of the oscillations amplitude in stayed cables under the action of rain, wind or traffic. The analysis needs the required conditions for each application determining the working conditions. The study includes the number of working cycles, the temperature effects and the cooling actions and, for instance, the action of the cycling frequency. The main target relates the appropriateness of the SMA for each purpose, and the suitability of the SMA device is always experimentally guaranteed. Furthermore, the applicability of the obtained results for SMA and the practical behavior of the SMA dampers were studied in international facilities. The paper includes appropriate suggestions for a correct preparation of the SMA dampers. This work outlines the effects of stress and temperature aging in NiTi, describes the particular structural effects between 18R and 6R, introduces a first attempt in the dynamic properties of the CuAlBe single crystals and summarizes some recent suggestions for damping using SMA.Keywords Shape memory alloys Á Martensitic transformation Á NiTi Á CuAlBe Á Damping Á Fatigue Part oneThe martensitic transformation (MT) is the origin of the unique properties of shape memory alloys (SMA) [1,2]. MT is a first-order phase transition between metastable phases with hysteresis. The transformation takes place with small displacements of the atoms and without any change in the positions of the neighboring atoms: Atomic order is conserved in the transformation. The transformation can be induced by temperature or by external forces, such as traction or compression. In temperature-induced transformations, M s (martensite start) denotes the starting temperature. The M f (martensite finish) temperature determines the end of the transformation, and A s and A f denote the austenite start and the austenite finish temperatures, respectively. This part was devoted to general contents and properties of the SMA appropriate for damping of oscillations. In particular, reduction of oscillations appeared in civil engineering structures.

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“…This process results in a large SME only if the reverse transformation proceeded by reversing the atomic path followed by the forward transformation [5,6]. Moreover, the iron based SMAs were reported being able to exhibit the unique property of pseudoelasticity [7,8]. In pseudoelastic behavior, during loading-unloading tensile cycle, the shape of the specimen return to its original configuration with a hysteresis loop in its path to the zero strain point.…”

Section: Introductionmentioning

confidence: 99%

Development of pseudoelasticity in Fe–10Ni–7Mn (wt%) high strength martensitic steel by intercritical heat treatment and subsequent ageing

Koohdar

Nili‐Ahmadabadi

Parsa

et al. 2015

Materials Science and Engineering: A

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Temperature dependence of critical stress and pseudoelasticity in a Fe–Mn–Si–Cr pre-rolled alloy

Cited by 47 publications

References 18 publications

A constitutive model for Fe-based shape memory alloy considering martensitic transformation and plastic sliding coupling: Application to a finite element structural analysis

A constitutive model for Fe-based shape memory alloy considering martensitic transformation and plastic sliding coupling: Application to a finite element structural analysis

Shape memory alloys as an effective tool to damp oscillations

Development of pseudoelasticity in Fe–10Ni–7Mn (wt%) high strength martensitic steel by intercritical heat treatment and subsequent ageing

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