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Shape Memory Alloys for Aerospace, Recent Developments, and New Applications: A Short Review
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Shape Memory Alloys for Aerospace, Recent Developments, and New Applications: A Short Review
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Journal Article
Shape Memory Alloys for Aerospace, Recent Developments, and New Applications: A Short Review
2020
Overview
Shape memory alloys (SMAs) show a particular behavior that is the ability to recuperate the original shape while heating above specific critical temperatures (shape memory effect) or to withstand high deformations recoverable while unloading (pseudoelasticity). In many cases the SMAs play the actuator’s role. Starting from the origin of the shape memory effect, the mechanical properties of these alloys are illustrated. This paper presents a review of SMAs applications in the aerospace field with particular emphasis on morphing wings (experimental and modeling), tailoring of the orientation and inlet geometry of many propulsion system, variable geometry chevron for thrust and noise optimization, and more in general reduction of power consumption. Space applications are described too: to isolate the micro-vibrations, for low-shock release devices and self-deployable solar sails. Novel configurations and devices are highlighted too.
