ISSN:
1432-0959
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Stress-induced transformation toughening in Zirconia-containing ceramics is described analytically by means of a quantitative model: A Griffith crack which interacts with a transformed, circular Zirconia inclusion. Due to its volume expansion, a ZrO2-particle compresses its flanks, whereas a particle in front of the crack opens the flanks such that the crack will be attracted and finally absorbed. Erdogan's integral equation technique is applied to calculate the dislocation functions and the stress-intensity-factors which correspond to these situations. In order to derive analytical expressions, the elastic constants of the inclusion and the matrix are assumed to be equal.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01129122