An enhanced Brinson model with modified kinetics for martensite transformation

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We propose an enhanced Brinson model with modified kinetics for martensite transformation. Two additional material constants are considered to follow the stress-temperature diagram above austenite start temperature (As) along with treatment to keep the continuity of the martensite volume fraction and the path dependency of the phase transformation. To demonstrate the performance of the proposed model, we implement this algorithm into ABAQUS user subroutine, then conduct several numerical simulations and compare their results with SMA wire experiments as well as those of three-dimensional SMA constitutive models. From the results, it turns out that the proposed model is as accurate as the three-dimensional models and shows better accuracy over original Brinson model in terms of recovery stress.
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Issue Date
2017-03
Language
English
Article Type
Article
Keywords

SHAPE-MEMORY ALLOY; 3-DIMENSIONAL CONSTITUTIVE MODEL; FINITE-ELEMENT-ANALYSIS; PHASE-TRANSFORMATIONS; BEHAVIOR; ACTUATORS

Citation

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.31, no.3, pp.1157 - 1167

ISSN
1738-494X
DOI
10.1007/s12206-017-0214-1
URI
http://hdl.handle.net/10203/223433
Appears in Collection
ME-Journal Papers(저널논문)
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