Experimental study of the electro-mechanical switching behavior of a piezoelectric stack actuator

Alexander York; Stefan Seelecke

doi:10.1117/12.776165

2 April 2008 Experimental study of the electro-mechanical switching behavior of a piezoelectric stack actuator

Alexander York, Stefan Seelecke

Proceedings Volume 6929, Behavior and Mechanics of Multifunctional and Composite Materials 2008; 692907 (2008) https://doi.org/10.1117/12.776165
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

The rate-dependence of piezoelectric materials resulting from the kinetics of domain switching is an important factor that needs to be included in realistic modeling attempts. This paper provides a systematic study of the rate-dependent hysteresis behavior of a commercially available PZT stack actuator. The stack actuator is coupled to a flexure system which provides mechanical loading via a spring. Experiments covering full as well as minor loops are conducted at different loading rates with polarization and strain recorded. In addition, the creep behavior at different constant levels of the electric field is observed. These experiments provide evidence of kinetics being characterized by strongly varying relaxation times that can be associated with different switching mechanisms.

Citation Download Citation

Alexander York and Stefan Seelecke "Experimental study of the electro-mechanical switching behavior of a piezoelectric stack actuator", Proc. SPIE 6929, Behavior and Mechanics of Multifunctional and Composite Materials 2008, 692907 (2 April 2008); https://doi.org/10.1117/12.776165

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