14 June 2000 Multiaxial models and experiments with ferroelectrics
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Abstract
The use of ferroelectrics in increasingly demanding roles as sensors and actuators motivates study of their fundamental constitutive behavior. This paper gives a preliminary report on measurements of the behavior of PZT-5H under multiaxial loading paths, and comparison with model predictions. The loading paths considered are loading of poled material with electric field at various angles (theta) to the poling direction, and loading with uniaxial compressive stress rotated through various angles (theta) to the poling direction. In each case the material response is measured by tracking electric displacement in the form of surface charge. Model predictions are made using a self-consistent crystal plasticity approach. The model is able to predict well the response to multiaxial electric field loading. There is good qualitative agreement in the case of mechanical loading.
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John E. Huber, John E. Huber, Norman A. Fleck, Norman A. Fleck, } "Multiaxial models and experiments with ferroelectrics", Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); doi: 10.1117/12.388213; https://doi.org/10.1117/12.388213
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