20 April 2007 Fatigue of cracked PZT ceramics in three-point bending under electric fields
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Abstract
This paper presents the results of an analytical and experimental investigation in fatigue crack growth behavior of piezoelectric ceramics under electromechanical loading. Static fatigue tests are performed in three-point bending with the single-edge precracked-beam piezoelectric specimens under electric fields. Time-to-failure under different mechanical loads and electric fields are measured, and the effect of applied electric fields on the energy release rate vs lifetime curves are discussed, with combination with the finite element method. Cyclic crack growth tests are also conducted on the same piezoelectric specimens under electric fields, and the fatigue crack growth rate vs maximum energy release rate curves are examined.
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Fumio Narita, Yasuhide Shindo, Fumitoshi Saito, "Fatigue of cracked PZT ceramics in three-point bending under electric fields", Proc. SPIE 6526, Behavior and Mechanics of Multifunctional and Composite Materials 2007, 65262O (20 April 2007); doi: 10.1117/12.713966; https://doi.org/10.1117/12.713966
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