Shape Memory Alloy Thin Film Auxetic Structures
نویسندگان
چکیده
Abstract Auxetic structures provide an interesting approach to solving engineering problems due their negative Poisson's ratio, which allows for elongation perpendicular applied stresses, opposite a conventional structure's necking behavior. Thus, they can function well in applications requiring compacting the device into small volume during deployment (e.g., implants inserted with catheters) or stretchability area coverage stretchable electronics). Fabricating them shape memory alloys (SMAs) expands possibilities. The high strains experienced by auxetic may become reversible compared ordinary metals superelastic effect. This work studies four different microstructures using thin film SMAs that are capable of surviving up 57.4%. Since these fabricated layer deposition and lithography, other components, such as microelectronics, be seamlessly integrated fabrication process. These films investigated mechanical behavior under tension stability. Under tension, known show wrinkling instabilities. In two designs, large leads wrinkling, while display stable, non‐wrinkling designs candidates electronics, wearable medical devices biosensors), stents).
منابع مشابه
Thin Film Shape Memory Alloys
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ژورنال
عنوان ژورنال: Advanced materials and technologies
سال: 2023
ISSN: ['2365-709X']
DOI: https://doi.org/10.1002/admt.202201991