Cyclic fatigue lifetime predictions of partially stabilized zirconia with crack resistance curve characteristics

✍ Scribed by Mark J. Hoffman; Werner Lentz; Michael V. Swain; Yiu-Wing Mai

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 850 KB
• Volume: 11
• Category: Article
• ISSN: 0955-2219
• DOI: 10.1016/0955-2219(93)90021-i

✦ Synopsis

A bstract

Predictions of static and cyclic fatigue crack growth of indentation-initiated strength-limiting flaws in a Mg-PSZ material are compared with observations. The extent q/'environmental effects on ~Tclie loading l([i)time prediction is determined by integrating the cyclic stress cycle following determination q[" crack growth parameters.[i'om static fatigue data. The effect o/crack tip shielding as a result of the crack resistance curve is also included. The true cyclic fatigue q/.fect is then determined. Crack growth dependence on the maximum stress in tensiO,, Kin,x, and A K and possible mechanistic e'cplanations q[" cyclic fatigue effect are also considered.