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CYCLIC FATIGUE OF ZIRCONIA
Author(s) -
Schmitt R.,
Fett T.,
Munz D.
Publication year - 1996
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1996.tb00177.x
Subject(s) - materials science , cubic zirconia , stress intensity factor , cyclic stress , paris' law , composite material , crack closure , power function , stress (linguistics) , stress concentration , structural engineering , fracture mechanics , mathematics , engineering , mathematical analysis , ceramic , linguistics , philosophy
Two partially‐stabilized zirconia materials, Mg‐PSZ and Y‐PSZ, were investigated in static and cyclic fatigue tests. The crack growth rates were determined as a function of the stress intensity factor (static tests) and the stress intensity factor range (cyclic tests). For all R ‐ratios investigated the crack‐growth relations are sufficiently described by power laws. An influence of frequency is obvious. Finally, the crack growth behaviour of natural flaws is compared with that of macroscopic cracks