NUMERICAL EVALUATION OF RESPONSE BEHAVIOR OF FRAME STRUCTURE USING SMA DAMPER

NUMERICAL EVALUATION OF RESPONSE BEHAVIOR OF FRAME STRUCTURE USING SMA DAMPER

Anju Ann Joseph1, Muneera B2, Raji R3

1Dept. of Civil Engg.,YCET, Kollam

2Dept. of Civil Engg.,YCET, Kollam

3Dept. of Civil Engg.,YCET, Kollam

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ABSTRACT - Shape Memory Alloys are materials that can be deformed at one temperature but when heated or cooled, return to their original shape. They also exhibit superelasticity or pseudo elasticity where, a small force induces considerable deformation but when the force is removed, the material automatically recovers its original shape without the need for heating. This project work focuses on the development of a FeMnNiAl Shape Memory Alloy damper, in the most possible configurations with the steel structure and by providing loading patterns where static conditions were evaluated i.e., deformation and stresses. Multiple configurations were proposed and evaluated. Of those, the most suitable configuration was found out, and then were analysed with the Ground acceleration data to check whether the structure sustains the deformation and remains stiffened. And hence concluded that the structure offers better stiffness by the introduction of an SMA damper, owing to an optimisation study is thus presented through the project work.

Keywords: Shape memory alloys (SMAs), Superelasticity, One-way shape memory, Two-way shape memory.