The thermomechanical constitutive experimentation of NiTi shape memory alloy strips and rods /
detwinning martensite, as the test temperatures approached
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | detwinning martensite, as the test temperatures approached isothermal tensile tests of the strip specimen. loading and recovery heating of the strip specimens. These material parameters determined from the tests, were used in modeling techniques as well as the determination of the models were then compared to results of the thermomechanical NiTi shape memory alloy strip and rod specimens. The stress- strain relationship is analyzed for isothermal monotonic strain. stress-induced-martensite was found to increase with test Tanaka's exponential model, Boyd-Lagoudas unified temperature on the thermomechanical constitutive behavior of temperature. These threshold-temperature relationships and tensile testing of 50.1 at.% Ni-Ti strip and 49.9 at.% Ni-Ti. tests. An additional phenomenon was observed during the martensite start temperature. The critical stress for The purpose of this thesis was to study the effect of The threshold stress value was found to decrease, for thermodynamic model, and Liang-Rogers' cosine model. The thermomechanical models. Three models were evaluated; transformation bands were found to introduces errors in the Transformation fronts would nucleate and grow during the |
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| Item Description: | "Major subject: Aerospace Engineering". Vita. |
| Physical Description: | x, 119 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |