Determining Cyclic Durability of Piezoceramic Structures Using Probabilistic-Structural Approach

The present paper addresses the new probabilistic-structural approach to determining the service life of piezoceramic structural members under multiple static or cyclic loading. The cyclical service life of structures is related to the intensity with which a microcrack density increases with the cycles of loading. To illustrate the approach the problem of durability of piezoelectric transformer plate for idle mode is considered. Two estimation methods of the durability of this type transformer are proposed.