Thermomechanical Modeling of Shape Memory Alloys with Rate Dependency on the Pseudoelastic Behavior

Jin-Ho Roh

Mathematical Problems in Engineering, 2014, vol. 2014, 1-9

Abstract:

The loading-rate dependency on the pseudoelastic behaviors of shape memory alloy (SMA) wires is experimentally and numerically investigated. The results are analyzed to estimate the parameters for a thermomechanical constitutive model of SMA wire with strain-rate dependency of the hysteresis behavior. An analytical model of SMAs is developed by using nonconstant parameters during various strain rates. Numerical simulations are performed to demonstrate the accuracy of the improved model.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:204165

DOI: 10.1155/2014/204165

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