Abstract: A method for fabricating a piezoelectric actuator. The method includes using a mold to place a first portion of a piezoelectric actuator in compression and to place a second portion of the piezoelectric actuator in tension. In a more specific embodiment, the method further includes selecting piezoelectric and elastic passive layer materials; choosing actuator dimensions with reference to desired actuator performance parameters; and then employing a curved mold to form a piezoelectric actuator with the desired dimensions. The piezoelectric actuator exhibits a first surface with compressive stresses caused by curing of the actuator via the curved mold.

Abstract: A high performance piezoelectric actuator. The actuator includes a piezoelectric material exhibiting a selectively tapered width sufficient to enhance actuator fracture load capabilities. A passive material is disposed on or integrated with the piezoelectric material. A drive system is connected to the piezoelectric material. The drive system is capable of selectively applying an electric field to the piezoelectric material. In specific embodiment, the piezoelectric material includes a curved piezoelectric layer exhibits a default state of compression along a surface of the piezoelectric layer.