Application of shape memory alloys in engineering – A review

Balasubramanian, M.; Srimath, R; Vignesh, L; Rajesh, S

doi:10.1088/1742-6596/2054/1/012078

Cited by 24 publications

(5 citation statements)

References 10 publications

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“…In vibratory systems, the damping capacity can come from different sources, for example, the interaction with the surrounding medium or from the internal friction. In this condition, the NiTi SMA spring is in the martensite phase, a crystalline structure with damping resulting from the stress-induced movement of the martensite–martensite interfaces (twin movement) [ 1 , 5 , 15 ]. Posteriorly, the spring is heated by applying an electrical current of 2.5 A.…”

Section: Resultsmentioning

confidence: 99%

“…Nowadays, shape memory alloys (SMAs), commonly known as smart materials, are widely used in diverse applications, such as mechanical, aerospace, automotive, and biomedical devices [ 1 , 2 , 3 , 4 , 5 ]. These materials, after being exposed to a load that plastically deforms them beyond their elastic limit or yield strength, can return to their original state when heated.…”

Section: Introductionmentioning

confidence: 99%

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Thermomechanical Characterization and Modeling of NiTi Shape Memory Alloy Coil Spring

et al. 2023

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Today, shape memory alloys (SMAs) have important applications in several fields of science and engineering. This work reports the thermomechanical behavior of NiTi SMA coil springs. The thermomechanical characterization is approached starting from mechanical loading–unloading tests under different electric current intensities, from 0 to 2.5 A. In addition, the material is studied using dynamic mechanical analysis (DMA), which is used to evaluate the complex elastic modulus E* = E′ − iE″, obtaining a viscoelastic response under isochronal conditions. This work further evaluates the damping capacity of NiTi SMA using tan δ, showing a maximum around 70 °C. These results are interpreted under the framework of fractional calculus, using the Fractional Zener Model (FZM). The fractional orders, between 0 and 1, reflect the atomic mobility of the NiTi SMA in the martensite (low-temperature) and austenite (high-temperature) phases. The present work compares the results obtained from using the FZM with a proposed phenomenological model, which requires few parameters for the description of the temperature-dependent storage modulus E′.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermomechanical Characterization and Modeling of NiTi Shape Memory Alloy Coil Spring

et al. 2023

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“…In addition, numerous businesses have developed goods and solutions based on SMAs, which has led to an increase in the availability of these items in the commercial market. This includes actuators, sensors, and other components based on SMA that can be utilized in a variety of applications [18].…”

Section: Emerging Trendsmentioning

confidence: 99%

Introductory Chapter: Introduction to Shape Memory Alloys

Asaduzzaman Chowdhury,

Hossain,

Hosne Mobarak

2024

Shape Memory Alloys - New Advances

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“…This design is able to prevent distraction for driver and also working in a silent operation [57]. Besides that, other applications of SMA actuators are including pop-up bonnet, micro scanner systems, flaps actuator and adaptive grab handles [58]. However, the practical applications of SMA have limitation due to the limited range of operating temperature of SMA material [59].…”

Section: Applications Of Sma As An Actuatormentioning

confidence: 99%

Heating Techniques of Shape Memory Alloy (SMA) - A Review

Karunakaran

Majid²,

Jaafar³

et al. 2022

ARFMTS

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Shape Memory Alloy (SMA) possess memory capability to revert its original shape when exposed to load or temperature changes. This unique thermomechanical property occurs during solid state phase transformations which corresponds to functional properties of SMA, shape memory effect (SME) and super elasticity (SE). The significant coupling behaviour of SMA can be utilized as actuator in aerospace, automotive, electrical and civil fields. However, in practical applications, the coupling behaviour of SMA are non-linear and hysteretic. The control mechanism of SMA coupling behaviour is complex. Therefore, in order to achieve good control of thermomechanical properties, a highly controllable and promising heating technique is required. Thus, this paper reviewed the existing heating techniques for the SMA intending to find a controllable heating technique for the SMA. Besides that, this review suggested the promising induction heating for SMA thermomechanical characterization which offer temperature controllability and faster heating capability. However, till date most of research works are purely empirical. The present paper is able to provide an insight on the experimental approaches toward induction heating of SMA. Thus, the main aim of this paper is to provide a better understanding on the heating mechanism of SMA to develop an optimized utilization of SMA as an actuator.

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Application of shape memory alloys in engineering – A review

Cited by 24 publications

References 10 publications

Thermomechanical Characterization and Modeling of NiTi Shape Memory Alloy Coil Spring

Thermomechanical Characterization and Modeling of NiTi Shape Memory Alloy Coil Spring

Introductory Chapter: Introduction to Shape Memory Alloys

Heating Techniques of Shape Memory Alloy (SMA) - A Review

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