Fracture toughness and fatigue crack initiation tests of welded precipitation-hardened stainless steelUnderwood, J.H., Farrara, R.A., O'Hara, G.P., Zalinka, J.J. and Senick, J.R. Proc. Conf. on Elastic-Plastic Fracture Test Methods: the User's Experience, Lake Buena Vista, Florida, USA, Nov. 1989 (ASTM STP1114)

1992 ◽  
Vol 14 (4) ◽  
pp. 276-276
Keyword(s):  
Fracture Toughness ◽  
Fatigue Crack ◽  
Crack Initiation ◽  
Fatigue Crack Initiation ◽  
Test Methods ◽  
Fracture Test ◽  
Elastic Plastic ◽  
Buena Vista

Elastic-Plastic Analysis of Blunt Notched CT Specimens and Applications

1974 ◽  
Vol 96 (4) ◽  
pp. 293-298 ◽  
Author(s):  
W. K. Wilson
Keyword(s):  
Fatigue Crack ◽  
Crack Initiation ◽  
Functional Relationship ◽  
Fatigue Crack Initiation ◽  
Functional Relation ◽  
Strain Analysis ◽  
Compact Tension ◽  
Stress Concentrations ◽  
Elastic Plastic ◽  
Notch Stress

An elastic-plastic plane strain analysis of blunt notched compact tension specimens used in fatigue crack initiation tests is presented. Using this analysis it is shown that under conditions of constrained plastic flow in the notch region, the functional relationship between total notch strain and an elastically calculated notch stress is nearly the same for different notch sharpnesses. This material dependent functional relation is shown to hold for some other geometric stress concentrations as well. Under conditions where this relationship is the same it should be possible to correlate fatigue crack initiation data by means of the elastically calculated notch stress.

Assessment Technology of Fatigue Crack Initiation Life of Weld Structures

2017 ◽  
Vol 86 (1) ◽  
pp. 56-58
Author(s):  
Seiichiro TSUTSUMI ◽  
Fincato RICCARDO ◽  
Mitsuru OHATA ◽  
Tomokazu SANO
Keyword(s):  
Fatigue Crack ◽  
Crack Initiation ◽  
Fatigue Crack Initiation ◽  
Assessment Technology ◽  
Crack Initiation Life
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