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Experimental investigation of non-linear constitutive behavior of PZT piezoceramics

Zhou, Dayu

Abstract:

Abstract

Experimental Investigation of Non-linear Constitutive Behavior
of PZT Piezoceramics The uni-axial non-linear large signal
behavior of PIC 151 soft PZT ceramics was experimentally
investigated under a pure electric field, a pure compressive
stress and combined electromechanical loading conditions,
respectively. Polarisation and strain vs. E field hysteresis
loops were observed under a pure cyclic electric field load. The
corresponding strain vs. polarisation (S – P) curves also
exhibited a significant hysteresis. The material response was
found to depend on the loading rate and amplitude of the applied
E field. A higher loading rate resulted in a smaller coercive
field. Ageing effects caused the remnant polarisation and strain
to decrease with time after removing the E field load. As
subjected to a pure compressive stress load, the material
exhibited non-linear stress-strain behavior. In addition, a
non-linear depolarisation curve was observed for the pre-poled
specimen. Permanent changes of polarisation and strain induced
by the mechanical load could be brought back to their initial
values by a subsequent application of an electric field to
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Volltext §
DOI: 10.5445/IR/1692003
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Zuverlässigkeit von Bauteilen und Systemen (IZBS)
Publikationstyp Hochschulschrift
Publikationsjahr 2003
Sprache Englisch
Identifikator urn:nbn:de:swb:90-AAA16920038
KITopen-ID: 1692003
Verlag Universität Karlsruhe (TH)
Erscheinungsvermerk Karlsruhe 2003. (Wissenschaftliche Berichte. FZKA. 6869.) Fak. f. Maschinenbau, Diss. v. 11.2.2003.
Art der Arbeit Dissertation
Fakultät Fakultät für Maschinenbau (MACH)
Institut Institut für Zuverlässigkeit von Bauteilen und Systemen (IZBS)
Prüfungsdaten Diss. v. 11.2.2003
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