Experimental behavior of iron-based shape memory alloys under cyclic loading histories

Rosa, Diego Isidoro Heredia; Hartloper, Alexander Riley; Sousa, Albano de Castro e; Lignos, Dimitrios G.; Motavalli, Masoud; Ghafoori, Elyas

doi:10.1016/j.conbuildmat.2020.121712

Cited by 40 publications

(9 citation statements)

References 33 publications

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“…Liu et al (1998) found that this asymmetric behavior is because of different deformation mechanisms in tension and compression modes. Rosa et al (2021) indicated that there is an asymmetric stress-strain relationship between the tensile-compressive cyclic behavior of Ni-Ti SMAs, since the activation of the reverse transformation may occur at room temperature depending on the stress level under uniaxial compressive loading. The same behavior was observed in Cu SMAs of various compositions.…”

Section: Behavior Of Smas Under Cyclic Loadingmentioning

confidence: 99%

“…Due to its relevance to seismic applications, the impact of different strain loading rates and temperatures on the hysteretic curve of SMAs is crucial. The significance of these parameters stems from the fact that under extremely strong loading, the material’s temperature rises and there is insufficient time for it to cool, which may influence the area of the stress-strain curve (Rosa et al, 2021). Therefore, in this section, the effects of various loading rates and temperatures are evaluated.…”

Section: Behavior Of Smas Under Cyclic Loadingmentioning

confidence: 99%

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Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

Mohammadgholipour

Billah

2023

Journal of Intelligent Material Systems and Structures

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Shape Memory Alloys (SMAs) are an innovative material with the unique features of superelasticity and energy dissipation capabilities under extreme loads. Due to their unique features, they have a great potential to be employed in structural engineering applications under different conditions. However, in order to effectively use SMAs in civil engineering structures and model their behaviors accurately in Finite Element (FE) packages, it is crucial for structural engineers to comprehend the mechanical properties and cyclic behavior of different SMA compositions under varying loading conditions. While previous studies have focused mainly on the cyclic behavior of SMAs under tensile loading, it is important to evaluate their fatigue behavior under cyclic tension-compression loading for seismic applications. This literature review aims to discuss the current gaps in the existing literature on the behavior of SMA rebars under low-cycle fatigue (LCF). The review provides a comprehensive overview of the primary characteristics of SMAs, summarizes the mechanical properties of SMAs presented in the literature and the parameters that affect them, and critically evaluates the effects of cyclic loading and LCF on SMAs. The review also provides a summary of the different constitutive models of SMAs and compares their advantages and limitations, which helps structural engineers to employ an appropriate constitutive model for predicting the accurate behavior of SMAs in FE software.

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Section: Behavior Of Smas Under Cyclic Loadingmentioning

confidence: 99%

Section: Behavior Of Smas Under Cyclic Loadingmentioning

confidence: 99%

Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

Mohammadgholipour

Billah

2023

Journal of Intelligent Material Systems and Structures

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“…Researchers have reported that the hysteretic loops of Fe-SMA can quickly saturate regardless of the strain range so that the peak stress is stable until failure [ 23 ]. However, according to the findings reported by Rosa et al [ 26 ], a slight cyclic softening behavior (i.e., decrease in peak stress) appears when the strain rate reaches 0.08/s, which is an expected strain rate considering a real earthquake excitation [ 103 ]. Further research opportunity exists in comprehensive understanding of the rate effect of the material, especially in the context of seismic application.…”

Section: Basic Propertiesmentioning

confidence: 99%

Iron-Based Shape Memory Alloys in Construction: Research, Applications and Opportunities

Zhang

et al. 2022

Materials

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As a promising candidate in the construction industry, iron-based shape memory alloy (Fe-SMA) has attracted lots of attention in the engineering and metallography communities because of its foreseeable benefits including corrosion resistance, shape recovery capability, excellent plastic deformability, and outstanding fatigue resistance. Pilot applications have proved the feasibility of Fe-SMA as a highly efficient functional material in the construction sector. This paper provides a review of recent developments in research and design practice related to Fe-SMA. The basic mechanical properties are presented and compared with conventional structural steel, and some necessary explanations are given on the metallographic transformation mechanism. Newly emerged applications, such as Fe-SMA-based prestressing/strengthening techniques and seismic-resistant components/devices, are discussed. It is believed that Fe-SMA offers a wide range of applications in the construction industry but there still remains problems to be addressed and areas to be further explored. Some research needs at material-level, component-level, and system-level are highlighted in this paper. With the systematic information provided, this paper not only benefits professionals and researchers who have been working in this area for a long time and wanting to gain an in-depth understanding of the state-of-the-art, but also helps enlighten a wider audience intending to get acquainted with this exciting topic.

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“…It has been reported that Fe-SMAs exhibit high post-yield stiffness alongwith excellent ductility and fatigue behavior compared to steel-bar-based dampers [33]. Rosa et al [34] found that Fe-SMAs show a higher hardening response than conventional steels. More recently, the recovery stress loss behavior of prestressed Fe-SMA rebars under cyclic loading reversals has been characterized extensively in [35] to facilitate their useability for seismic retrofitting applications.…”

Section: Iron-based Shape Memory Alloy Reinforcementmentioning

confidence: 99%

Anchorage behavior of Fe-SMA rebars Post-Installed into concrete

Raza

Michels²,

Schranz³

et al. 2022

Engineering Structures

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Experimental behavior of iron-based shape memory alloys under cyclic loading histories

Cited by 40 publications

References 33 publications

Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

Mechanical properties and constitutive models of shape memory alloy for structural engineering: A review

Iron-Based Shape Memory Alloys in Construction: Research, Applications and Opportunities

Anchorage behavior of Fe-SMA rebars Post-Installed into concrete

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