Tj. Royston et Bh. Houston, MODELING AND MEASUREMENT OF NONLINEAR DYNAMIC BEHAVIOR IN PIEZOELECTRIC CERAMICS WITH APPLICATION TO 1-3 COMPOSITES, The Journal of the Acoustical Society of America, 104(5), 1998, pp. 2814-2827
The nonlinear vibratory behavior of a 1-3 piezoceramic composite is ch
aracterized theoretically and experimentally. The developed theoretica
l model for the electroelastic behavior of the 1-3 composite follows c
onventional assumptions made by prior investigators but includes nonli
near terms to account for hysteresis in the embedded PZT phase. Experi
mental measurements of the quasistatic and dynamic mechanical response
of the 1-3 with embedded PZT-4 or PZT-5H phases to harmonic electrica
l excitation over a range of excitation frequencies and two different
mechanical lending conditions quantify the nature and level of nonline
arity and illustrate its dependence on the type of PZT material and th
e mechanical coupling conditions of the 1-3 to its surroundings. Good
agreement exists between theoretical predictions and experimental meas
urements. (C) 1998 Acoustical Society of America. [S0001-4966(98)03211
-1]