Abstract

The increased need for new types of materials to fulfill the tight requirements of today’s advanced technologies marked the advent of a new material age. The transition from a passive based materials era to an active based materials era is well underway. The recently developed new generation of active materials such as the Micro -Fiber Composite actuator, (MFC TM ) demonstrated high levels of conformability, and enhanced strain performances as compared to conventional monolithic isotropic piezoceramic actuators. The present study develops a new simplified nonlinear finite element formulation using a broaden MI N3 shell element to account for the mechanical-electrical coupling between bonded MFC TM actuator and host cylindrical aluminum shallow shell structures. The formulation is general and able to handle cylindrical curved laminated composite and isotropic sha llow shell structures. A square clamped isotropic shallow shell panel bonded with a rotating MFC TM actuator is studied herein for the nonlinear frequency response of the shallow shell system. The effect of the MFC TM actuator angularity on the nonlinear response of the shallow shell panel is investigated.

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