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R. Chaudhari et al.
Fig. 3 Variable geometry chevron of GE90-115 B [11]
2.2 Aerospace Applications
The unique functional properties of SMAs have fascinated the researchers to use them
in aerospace applications. In the 1970s, SMA coupling was successfully implemented
in F-14 fighter jets. Aerospace applications are highly exposed to increased dynamics
loads and space constraints. Vibration dampers, manipulators, release mechanisms,
structural connectors, path finder applications, and actuators are few of those applications. Figure 3 shows an aerodynamic device with SMA actuator, variable geometry
chevron (VGC) has been developed by Boing [11]. It was installed on a GE90115 B jet engine. The key benefit of maximized chevron deflection resulted in a
significant reduction in noise during takeoff. Also, by minimizing chevron deflection after takeoff, it has found to increase cruise efficiency. TiNiPt high temperate
shape memory alloy (HTSMA) has been used for a core exhaust chevron design [12].
Figure 4 shows key aerospace areas for SMA applications.
2.3 Biomedical Applications
In addition to pseudoelasticity and shape memory effect, nitinol is considered as an
ideal material for biomedical applications owing to their properties like biocompatibility, corrosion resistance, and wear resistance. The unique properties of SMAs
make them reproduce as that of human tissues and bones. SMAs can be manufactured in such a way that they can react and transform following the human body
temperature. The applications of SMAs are in the fields of cardiology, orthopedics
interventional radiology, and neurology for medical devices and types of equipment.
The other medical application of SMA includes stents, eyeglass frames, implants,
endodontic, medical tweezers, etc. Figure 5 shows the biomedical applications of
R. Chaudhari et al.
Fig. 3 Variable geometry chevron of GE90-115 B [11]
2.2 Aerospace Applications
The unique functional properties of SMAs have fascinated the researchers to use them
in aerospace applications. In the 1970s, SMA coupling was successfully implemented
in F-14 fighter jets. Aerospace applications are highly exposed to increased dynamics
loads and space constraints. Vibration dampers, manipulators, release mechanisms,
structural connectors, path finder applications, and actuators are few of those applications. Figure 3 shows an aerodynamic device with SMA actuator, variable geometry
chevron (VGC) has been developed by Boing [11]. It was installed on a GE90115 B jet engine. The key benefit of maximized chevron deflection resulted in a
significant reduction in noise during takeoff. Also, by minimizing chevron deflection after takeoff, it has found to increase cruise efficiency. TiNiPt high temperate
shape memory alloy (HTSMA) has been used for a core exhaust chevron design [12].
Figure 4 shows key aerospace areas for SMA applications.
2.3 Biomedical Applications
In addition to pseudoelasticity and shape memory effect, nitinol is considered as an
ideal material for biomedical applications owing to their properties like biocompatibility, corrosion resistance, and wear resistance. The unique properties of SMAs
make them reproduce as that of human tissues and bones. SMAs can be manufactured in such a way that they can react and transform following the human body
temperature. The applications of SMAs are in the fields of cardiology, orthopedics
interventional radiology, and neurology for medical devices and types of equipment.
The other medical application of SMA includes stents, eyeglass frames, implants,
endodontic, medical tweezers, etc. Figure 5 shows the biomedical applications of