scholarly journals Effect of macroscopic yielding on the small-crack growth law. Investigation based on the fatigue tests under axial loading of annealed and pre-strained 0.45% C steels.

1985 ◽  
Vol 51 (462) ◽  
pp. 440-444
Author(s):  
Hironobu NISITANI ◽  
Masahiro GOTO
Keyword(s):  
Crack Growth ◽  
Axial Loading ◽  
Fatigue Tests ◽  
Small Crack ◽  
Small Crack Growth

Fatigue Crack Growth Resistance in Ni-Base Super Alloy

2007 ◽  
Vol 348-349 ◽  
pp. 541-544 ◽  
Author(s):  
Kazuhiro Morino ◽  
Norio Kawagoishi ◽  
Q. Chen ◽  
Y. Matsuyama ◽  
Y. Nakamura
Keyword(s):  
Growth Rate ◽  
Grain Size ◽  
Crack Growth ◽  
Fatigue Tests ◽  
Small Crack ◽  
Fatigue Crack Growth Resistance ◽  
Rotating Bending Fatigue ◽  
Rotating Bending ◽  
Small Crack Growth ◽  
Super Alloy

Rotating bending fatigue tests were carried out to investigate the influence of grain size on the resistance to crack growth of Ni-base super alloy, Inconel 718, using the materials with grain sizes of about 20, 50,100 and 200 たm, at room temperature. The larger grain size, the smaller crack growth rate, though the static strength was decreased with increase in grain size. The growth rate of a small crack was uniquely determined by the term ja na (Small crack growth law), where ja and a are the stress amplitude and the crack length, respectively, and n is a constant. The resistance to crack growth among materials was evaluated based on the law and showed a good correlation with tensile strength jB, meaning that fatigue life can be predicted by using only j B BB.

scholarly journals Discussion of models for LCF small crack growth

2011 ◽  
Vol 10 ◽  
pp. 3642-3649 ◽  
Author(s):  
S. Beretta ◽  
S. Foletti ◽  
L. Patriarca
Keyword(s):  
Crack Growth ◽  
Small Crack ◽  
Small Crack Growth

A small-crack growth law and its related phenomena

1992 ◽  
Vol 41 (4) ◽  
pp. 499-513 ◽  
Author(s):  
Nisitani Hironobu ◽  
Goto Masahiro ◽  
Kawagoishi Norio
Keyword(s):  
Crack Growth ◽  
Small Crack ◽  
Small Crack Growth
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