Shape Memory Alloy Actuators

This book provides a systematic approach to realizing NiTi shape memory alloy actuation, and is aimed at science and engineering students who would like to develop a better understanding of the behaviors of SMAs, and learn to design, simulate, control, and fabricate these actuators in a systematic approach.   Several innovative biomedical applications of SMAs are discussed. These include orthopedic, rehabilitation, assistive, cardiovascular, and surgery devices and tools. To this end unique actuation mechanisms are discussed. These include antagonistic bi-stable shape memory-superelastic actuation, shape memory spring actuation, and multi axial tension-torsion actuation. These actuation mechanisms open new possibilities for creating adaptive structures and biomedical devices by using SMAs.

List of Contributors vii Preface xi Acknowledgments xiii 1 Introduction 1 Christoph Haberland, Mahmoud Kadkhodaei and Mohammad H. Elahinia 2 Mathematical Modeling and Simulation 45 Reza Mirzaeifar and Mohammad H. Elahinia 3 SMA Actuation Mechanisms 85 Masood Taheri Andani, Francesco Bucchi and Mohammad H. Elahinia 4 Control of SMA Actuators 125 Hashem Ashrafiuon and Mohammad H. Elahinia 5 Fatigue of Shape Memory Alloys 155 Mohammad J. Mahtabi, Nima Shamsaei and Mohammad H. Elahinia 6 Fabricating NiTi SMA Components 191 Christoph Haberland and Mohammad H. Elahinia 7 Experimental Characterization of Shape Memory Alloys 239 Ali S. Turabi, Soheil Saedi, Sayed Mohammad Saghaian, Haluk E. Karaca and Mohammad H. Elahinia Index 279