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Energy Absorption of Auxetic Metallic Yield Damper Made of Shape Memory Alloys

Authors: Milad Masodi; Ahmad Ganjali; Hamidreza Irani; Aboozar Mirzakhani;

Energy Absorption of Auxetic Metallic Yield Damper Made of Shape Memory Alloys

Abstract

In the present study, we present a novel shape memory alloy metallic yielding dampers for energy dissipation and damage control in the steel structural members, composed of an auxetic main member and a negative Poisson member that absorbs energy by plastic deformation mechanism. Using the ABAQUS software, a set of quasi-static nonlinear analyses were performed on the metallic yielding damper with different geometric parameters in order to predict its energy absorption capacity under direct traction loading. The superelastic behavior of the shape memory alloys is defined by using the Brinson's structural relationships with the UMAT subroutine. It has been verified through a finite element analysis that the proposed element is both highly ductile and capable of dissipating high amounts of energy. In the optimal state, the specific absorbed energy and the ductility of the proposed asbestos damper made of memory alloy are 39.2 J/kg and 44, respectively, which are about 114% and 81% higher than the corresponding steel dampers. Thus, this new damper is capable of consuming quite a lot of input energy with its unique ductile behavior, while at the same time being able to replace quite a few existing metal dampers due to its simplicity and high performance..

Keywords

energy dissipation, shape memory alloy, Engineering design, nonlinear finite element, auxetic metallic yielding damper, TA174, ductility

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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gold