A one-dimensional material model of lead magnesium niobate (PMN) is presented. The model includes saturation phenomenology, but excludes hysteresis and dispersion. (Constant temperature is assumed.) It is shown that the strain can be taken to respond as an exactly quadratic function in the electric displacement D throughout the saturation region and yet still deduce the full observed response of the material, including flattening of the curve, when the strain is expressed as a function of electric field E. The model developed here is shown to be compatible with experimental measurements previously acquired by other researchers.
No takes yet. Share an insight, caveat, or question.
Piquette et al. (1997) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: