Constraint Effect in Brittle Fracture

2009 ◽  
pp. 41-41-20 ◽  
Author(s):  
Y-J Chao ◽  
XH Zhang
Keyword(s):  
Brittle Fracture ◽  
Constraint Effect

Constraint Effects in Weld Thermal Simulated Steel Specimens

2008 ◽  
Author(s):  
Erling O̸stby ◽  
Christian Thaulow ◽  
Ba˚rd Nyhus
Keyword(s):  
Fracture Toughness ◽  
Brittle Fracture ◽  
Weibull Distribution ◽  
Constraint Effect ◽  
Weibull Parameters ◽  
Constraint Effects ◽  
Two Parameter ◽  
Fracture Constraint

The brittle fracture constraint effect in two different weld thermal simulated microstructures of a 500 MPa steel is investigated through testing of bending specimens with different a/W ratios. It is found that on average the constraint effect is higher in the CGHAZ microstructure compared to the ICCGHAZ. The procedure for calibration of Weibull parameters proposed by Gao et al. [1] has been applied to the results. It is found that a lower m-value is calibrated for the ICCGHAZ microstructure due to the lower constraint effect observed. Three-parameter representations of the Weibull distribution better represent the distribution of the fracture toughness values compared to two-parameter representations.

Brittle Fracture Characteristics of Multiple Notches in Parallel and Parallel-staggered Arrangement

1975 ◽  
Vol 15 (1) ◽  
pp. 11-18
Author(s):  
Hiroshi MAENAKA ◽  
Shigeru KITAMURA ◽  
Kin-ichi NAGAI ◽  
Kazuo IKEDA ◽  
Katsuya KAJIMOTO ◽  
...  
Keyword(s):  
Brittle Fracture ◽  
Fracture Characteristics ◽  
Staggered Arrangement
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