The Role of Thermomechanical Coupling in the Dynamic Behavior of Shape Memory Alloys
In recent years, shape memory alloys (SMAs) have started to attract increasing attention due to some of their dynamic properties. The hysteretic phase transformation between austenite and martensite at high temperature and between different twins of the martensite phase at low temperature constitutes an intrinsic dissipation mechanism, which results in a considerable damping capacity. Graesser and Cozarelli  suggested the use of SMAs as novel damping materials and Clark et al  demonstrated the feasibility of the concept for a Nitinol wire device. Potential applications are seen for example in civil structures like buildings and bridges needing an efficient seismic base isolation, see Wilde et al .
KeywordsShape Memory Shape Memory Alloy Phase Fraction Torsion Pendulum Base Isolation System
Unable to display preview. Download preview PDF.
- 2.Clark PW, Aiken ID, Kelly JM, Higashino M, Krumme RC (1995), Experimental and analytical studies of shape memory alloy damper for structural control, in Proc. of Passive Damping, San Diego, CA, 1995Google Scholar
- 5.Seelecke S (2000), Dynamics of a SDOF system with shape memory element, in Proc. Smart Structures and Materials, Newport Beach, CA, SPIE Vol. 3992, 474–481Google Scholar
- 8.Seelecke S (2000), A fully coupled thermomechanical model for shape memory alloys, Part I: Theory, in preparationGoogle Scholar
- 9.Seelecke S and Kastner O (2000), A fully coupled thermomechanical model for shape memory alloys, Part II: Numerical simulations, in preparationGoogle Scholar
- 10.Heintze O and Seelecke S (2000), Interactive WWW page for the simulation of shape memory alloys, http://www.thermodynamik.tuberlin.de/haupt/simulation/Sma_Sim_Home.html Google Scholar
- 11.Sahota H and Heintze O (2000), Experimental investigation of the dynamic behavior of SMAs under torsional loading, Tech. Rep. TU Berlin, 2000Google Scholar