Network formalism for modeling functionally gradient piezoelectric plates and stacks and simulations of RAINBOW ceramic actuators.
A simple network representation is given for a stack of thin, homogeneous piezoelectric plates, executing a single thickness mode of motion. All plates may differ in thickness and material properties, including dielectric loss, ohmic conductivity, and viscous loss. Each plate is driven by a thickness-directed electric field, and all stack elements are connected electrically in series. Functionally gradient single plates and composites are readily modeled by the network, to a desired precision, using a sequence of circuit elements representing stepwise variations in material properties and layer thicknesses. Simulations of RAINBOW (Reduced And Internally Biased Oxide Wafer) ceramics are given.
Ballato
J
J
Department of Ceramic and Materials Engineering, Clemson University, Clemson, SC 29634-0907, USA. john.ballato@ces.clemson.edu
Schwartz
R
R
Ballato
A
A