Low-weight: high-stiffness glass fiber reinforced polymer beams with embedded piezoelectric fibers

John A. Gallagher; Roselita Fragoudakis; Vladimir Kim; Alfred Larsson

doi:10.1117/12.2261110

11 April 2017 Low-weight: high-stiffness glass fiber reinforced polymer beams with embedded piezoelectric fibers

John A. Gallagher, Roselita Fragoudakis, Vladimir Kim, Alfred Larsson

Proceedings Volume 10164, Active and Passive Smart Structures and Integrated Systems 2017; 101640F (2017) https://doi.org/10.1117/12.2261110
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

This work presents a theoretical study of the effects on stiffness and deflection of embedding piezoelectric fibers within glass fiber reinforced polymer beams. Through this study, enhancements to the beam stiffness and flexural capabilities are analyzed as a result of the piezoelectric effect of the embedded piezoelectric fibers. Fiber orientation of glass fiber reinforced polymer laminated beams is optimized based on stiffness requirements following classical lamination theory. The piezoelectric effect on the glass fiber reinforced polymer beam is analyzed for simply-supported mechanical boundary conditions. The symmetric unidirectional general stacking sequence laminates are shown to have optimal stiffness and deflection behavior. The addition of piezoelectric fibers with d₃₃₃ piezoelectric actuation mode further increases stiffness and reduces deflection. This enables tuning of the mechanical properties of the laminate beam. Introducing piezoelectric fibers to the reinforcing phase further optimizes the deflection range under bending while additionally minimizing the weight of the structure. The strengthening effect of the piezoelectric fibers can reduce the required number of laminate layers while maintaining optimal behavior.

Conference Presentation

Citation Download Citation

John A. Gallagher, Roselita Fragoudakis, Vladimir Kim, and Alfred Larsson "Low-weight: high-stiffness glass fiber reinforced polymer beams with embedded piezoelectric fibers", Proc. SPIE 10164, Active and Passive Smart Structures and Integrated Systems 2017, 101640F (11 April 2017); https://doi.org/10.1117/12.2261110

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