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Engineering, Germany

Wischke M.,UniversityofFreiburg | Haller D.,UniversityofFreiburg | Goldschmidtboeing F.,UniversityofFreiburg | Woias P.,UniversityofFreiburg
Smart Materials and Structures | Year: 2010

For high electrical loads, the electromechanical characteristics of PZT actuators are impacted by nonlinearities. This work presents a procedure, derived from nonlinear analysis, to assess separately the electrostriction and the elastostriction parameters of bulk PZT ceramics. A detailed investigation has shown that the electrostriction is dominant in actuator applications, while the elastostriction affects sensor applications. Further, the relationship between electrostriction and polarization in PZT material is discussed. © 2010 IOP Publishing Ltd. Source

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