A comparative study on macrofiber composites and active fiber composites with metal-core piezoelectric actuators/sensors

Davood Askari; Hiroshi Asanuma; Mehrdad N. Ghasemi-Nejhad

doi:10.1117/12.658232

6 April 2006 A comparative study on macrofiber composites and active fiber composites with metal-core piezoelectric actuators/sensors

Davood Askari, Hiroshi Asanuma, Mehrdad N. Ghasemi-Nejhad

Author Affiliations +

Proceedings Volume 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics; 61701I (2006) https://doi.org/10.1117/12.658232
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

Piezoelectric sensors and actuators have gained considerable interest by investigators and researchers for their use in intelligent/smart structures and electromechanical systems. Furthermore, demands from industry for sensors and actuators with higher quality and better performance for a variety of applications have lead the researchers to design piezoelectric systems with optimal configurations to enhance the performance of such actuators and sensors. An analytical micromechanics approach is presented to model the effective longitudinal mechanical properties of Metal-Core Piezoelectric Fibers (MPFs) and Macro Fiber Composites (MFCs). The model assumes general orthotropic material properties for both outside and inside materials. Next, using constitutive equations, the exact analytical solutions for the stress distributions are obtained for axially loaded active fibers. To examine the mechanical performance of the MPF and MFC, material properties and geometric dimensions are substituted into the analytical exact solutions and then effective longitudinal mechanical properties as well as the stress distributions within the domain of each constituent material are obtained and then compared. Finally, the results are presented and concluding remarks are addressed and discussed in details.

Citation Download Citation

Davood Askari, Hiroshi Asanuma, and Mehrdad N. Ghasemi-Nejhad "A comparative study on macrofiber composites and active fiber composites with metal-core piezoelectric actuators/sensors", Proc. SPIE 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, 61701I (6 April 2006); https://doi.org/10.1117/12.658232

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