Fracture and Fatigue of Piezoelectric Ceramics and Development of an Adaptive Sandwich Structure.

Abstract

Smart materials such as SMA and piezoelectric materials offer promising applications in many adaptive structures enabling the development of new structural control. Potential applications include shape control of large space structures, active noise and vibration control, flutter suppression, and microservoelasticity in flight vehicles. To deliver the maximum actuation power, piezoelectric actuators are subjected to high electric fields and strains. The development of reliability and life prediction methodologies for piezoceramics is of vital importance to the technology of smart structures. The result of this research concerning the behavior of fracture and fatigue crack growth in PZT piezoceramics under combined electrical and mechanical loads is an important step to the aforementioned goal.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1996
Accession Number
ADA317561

Entities

People

  • Chintech Sun

Organizations

  • Purdue University

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Actuators
  • Advanced Materials
  • Electric Fields
  • Engineered Materials
  • Large Space Structures
  • Materials
  • Materials Testing
  • Piezoceramics
  • Piezoelectric Materials
  • Reliability
  • Test Methods
  • Vibration

Fields of Study

  • Physics

Readers

  • Materials Science (Mechanical Engineering).
  • Robotics and Automation.
  • Structural Dynamics.

Technology Areas

  • Space