[an error occurred while processing this directive]
This paper examines
theoretically and experimentally the nonlinear electromechanical response of
piezoelectric macrofiber composites. 3D finite element analysis was carried out to
study the strain versus electric field curve and the internal electromechanical fields
near interdigitated electrodes in the macrofiber composites by introducing a model
for polarization switching. The piezoelectric fibers in the macrofiber composite are
partially or fully poled. Results on the strain versus electric field curves from
microelectromechanical models and simple experiments were also presented, and
comparison was made with the finite element solutions.
Keywords
piezomechanics, finite element method, material testing,
piezoelectric composites, electromechanical field
concentrations, smart materials and structures