O. Guillon;F. Thiebaud;D. Perreux;O. Guillon;F. Thiebaud;D. Perreux;
international journal of fracture1970Vol. 117pp. 235-246
236
guillon1970internationaltensile
Abstract
Power applications generate high stresses which can damage piezoceramic components. In this study tensile fracture of several types of PZT (hard/soft) is investigated. After validation of the specimen geometry by means of numerical simulation, samples are led to failure using a specific device. Weibull law parameters enable the characterisation of the tensile strength distribution and highlight clear differences between soft and hard ceramics. A fractographic approach emphasises the specificities of the fracture mode and the fracture origin for each type of samples.