Exploring the piezoelectric performance of PZT particulate-epoxy composites loaded in shear

Journal article (2016)

Authors

F. Van Loock Novel Aerospace Materials - Aerospace Engineering
D.B. Deutz Novel Aerospace Materials - Aerospace Engineering
S. van der Zwaag Novel Aerospace Materials - Aerospace Engineering
W.A. Groen TNO, Novel Aerospace Materials - Aerospace Engineering
Research Group
Novel Aerospace Materials (Aerospace Engineering) (TU Delft)
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Published Date

19-07-2016

Language

English

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Novel Aerospace Materials

Abstract

The active and passive piezoelectric response of lead zirconium titanate (PZT)-epoxy particulate composites loaded in shear is studied using analytical models, a finite element model and by experiments. The response is compared to that of the same composites when loaded in simple tension. Analogously to bulk PZT, particulate PZT-polymer composites loaded in shear show higher piezoelectric charge coefficient (d 15) and energy density figure of merit (FOM15) values compared to simple tension (d 33) and (FOM33). This outcome demonstrates the as-yet barely explored potential of piezoelectric particulate composites for optimal strain energy harvesting when activated in shear.