Calculating Damping Ratio of SMAs Using Hysteresis Loops

AI Thread Summary
The discussion revolves around calculating the damping ratio for shape memory alloys (SMAs) using hysteresis loops. The damping ratio formula, ΔU/2∏U, requires determining the elastic strain energy (U), which poses a challenge due to the unique behavior of SMAs. The original poster, Leon, seeks guidance on accurately finding this elastic strain energy, particularly in the context of a hysteresis loop demonstrating the superelastic effect. The conversation highlights the need for additional information or findings to facilitate responses and assistance from others in the forum.
scriptymender
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G'day guys,

I am currently trying to calculate the damping ratio for Shape memory alloys using hysteresis loops. The damping ratio is usually represented as ΔU/2∏U, where ΔU is the energy lost due to material damping and U is the elastic strain energy. My problem is trying to find this elastic strain energy due to the unusual behaviour of shape memory alloys. I have attached an example of a hysteresis loop for an SMA undergoing the super elastic effect. If anyone could give me any help or guidance I would be extremely grateful and may even buy you a beer!

Thanks, Leon
 

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I'm sorry you are not generating any responses at the moment. Is there any additional information you can share with us? Any new findings?
 

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