Modified Double Torsion Method for Measuring Crack Velocity in NC-132 (Si3N4)

1978 ◽  
pp. 737-744
Author(s):  
C. G. Annis ◽  
J. S. Cargill
Keyword(s):  
Crack Velocity ◽  
Double Torsion

Double-torsion testing a 3Y-TZP ceramic

1996 ◽  
Vol 22 (2) ◽  
pp. 171-177 ◽  
Author(s):  
J. Chevalier ◽  
M. Saadaoui ◽  
C. Olagnon ◽  
G. Fantozzi
Keyword(s):  
Torsion Testing ◽  
Double Torsion

scholarly journals Characteristics of the double-torsion test to determine the R-curve of ceramic materials

2006 ◽  
Vol 9 (4) ◽  
pp. 361-368 ◽  
Author(s):  
Maria da Consolação Fonseca de Albuquerque ◽  
José de Anchieta Rodrigues
Keyword(s):  
Torsion Test ◽  
Ceramic Materials ◽  
Double Torsion

scholarly journals Correlation between Paris function parameters to crack velocity for Alumina ceramics

2011 ◽  
Vol 8 (2) ◽  
pp. 326-332
Author(s):  
Baghdad Science Journal
Keyword(s):  
Experimental Data ◽  
Crack Growth ◽  
Exponential Function ◽  
Crack Velocity ◽  
Alumina Ceramic ◽  
Velocity Versus ◽  
Rate Theory ◽  
Alumina Ceramics ◽  
Region I ◽  
Different Grain Size

The question about the existence of correlation between the parameters A and m of the Paris function is re-examined theoretically for brittle material such as alumina ceramic (Al2O3) with different grain size. Investigation about existence of the exponential function which fit a good approximation to the majority of experimental data of crack velocity versus stress intensity factor diagram. The rate theory of crack growth was applied for data of alumina ceramics samples in region I and making use of the values of the exponential function parameters the crack growth rate theory parameters were estimated.

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