Creep crack growth prediction and assessment incorporating constraint effect for pressurized pipes with axial surface cracks

2016 ◽  
Vol 154 ◽  
pp. 92-110 ◽  
Author(s):  
S. Liu ◽  
G.Z. Wang ◽  
S.T. Tu ◽  
F.Z. Xuan
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
Surface Cracks ◽  
Constraint Effect ◽  
Growth Prediction ◽  
Creep Crack ◽  
Axial Surface

On the creep crack growth prediction by a local approach

1986 ◽  
Vol 25 (5-6) ◽  
pp. 677-691 ◽  
Author(s):  
K. Saanouni ◽  
J.L. Chaboche ◽  
C. Bathias
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
Local Approach ◽  
Growth Prediction ◽  
Creep Crack

A New Damage Approach for Creep Crack Growth Prediction

1991 ◽  
pp. 355-362 ◽  
Author(s):  
S. Kruch ◽  
J. L. Chaboche ◽  
P. M. Lesne
Keyword(s):  
Crack Growth ◽  
Creep Crack Growth ◽  
Growth Prediction ◽  
Creep Crack

Numerical Prediction of Constraint Effect of Creep Crack Growth

2009 ◽  
Author(s):  
Masataka Yatomi ◽  
Kamran M. Nikbin
Keyword(s):  
Crack Growth ◽  
Plane Strain ◽  
Plane Stress ◽  
Creep Crack Growth ◽  
Constraint Effect ◽  
Three Point Bending ◽  
Creep Crack ◽  
Reference Stress ◽  
Edge Notch ◽  
Stress And Strain Rate

This paper presents the effect of constraint on creep crack growth (CCG) using FE analysis based on the stress and strain rate state at the crack tip. The comparison is made by modelling C(T) specimen tests under plane stress and plane strain conditions using creep properties of three different steels (C-Mn steel, P91 steel, and 316H austenitic steel). In addition, in order to examine the constraint effect on CCG due to geometry single edge notch specimen (SENT), centre cracked tension specimen (CCT) and three point bending (3PB) specimen have also been analysed. In all cases it is found that when the reference stress under plane strain conditions is higher than the yield stress, there is little difference between CCG rates under plane stress and plane strain.

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