Contents
Abstract
Acknowledgments
Contents
List of Tables
List of Figures
List of Abbreviations
List of Symbols
1 Introduction
1.1 Shape memory alloys
1.1.1 Phase transformation in SMAs
1.1.2 Shape memory effect
1.1.3 Superelasticity
1.1.4 Applications
1.1.5 Multi-axial loading behavior
1.1.6 Loading rate dependency (thermo-mechanical coupling)
1.2 Constitutive modeling of SMAs
1.3 Objectives
1.4 Approach
1.5 Contribution
1.6 Publications
2 A rate dependent constitutive non-Mises based model
2.1 Introduction
2.2 Development of a general 3D constitutive model
2.2.1 Coupled Constitutive Relations For The Combined Tension-Torsion Loading
2.3 Implementation: time-discretization and solution algorithms
3 Results: Evaluation and discussion
3.1 Tests with isothermal loading conditions
3.2 Tests with dynamic loading conditions
4 Numerical example; a combined tension-torsion SMA application
4.1 Introduction
4.2 Anke foot orthosis
4.3 Biaxial SMA actuator for AFO
5 Conclusions and future work
5.1 Conclusions
5.2 Future work
References
