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Thermomechanical Methodology for Stabilizing Shape Memory Alloy (SMA) ResponseMethods and apparatuses for stabilizing the strain-temperature response for a shape memory alloy are provided. To perform stabilization of a second sample of the shape memory alloy, a first sample of the shape memory alloy is selected for isobaric treatment and the second sample is selected for isothermal treatment. When applying the isobaric treatment to the first sample, a constant stress is applied to the first sample. Temperature is also cycled from a minimum temperature to a maximum temperature until a strain on the first sample stabilizes. Once the strain on the first sample stabilizes, the isothermal treatment is performed on the second sample. During isothermal treatment, different levels of stress on the second sample are applied until a strain on the second sample matches the stabilized strain on the first sample.
Document ID
20140001866
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Padula, II, Santo A
Date Acquired
March 14, 2014
Publication Date
April 2, 2013
Subject Category
Mechanical Engineering
Report/Patent Number
Patent Application Number: US-Patent-Appl-SN-12/874,523
Patent Number: US-Patent-8,409,372
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,409,372
Patent Application
US-Patent-Appl-SN-12/874,523
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