Validity of a new fracture mechanics technique for the determination of the threshold stress intensity factor for stress corrosion cracking (KIscc) and crack growth rate of engineering materials

2008 ◽  
Vol 75 (6) ◽  
pp. 1623-1634 ◽  
Author(s):  
R.N. Ibrahim ◽  
R. Rihan ◽  
R.K. Singh Raman
Keyword(s):  
Growth Rate ◽  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Crack Growth Rate ◽  
Intensity Factor ◽  
Crack Growth ◽  
Threshold Stress ◽  
Threshold Stress Intensity ◽  
Threshold Stress Intensity Factor

Threshold Stress Intensity Factor (Kth) in Inertial Effect Coefficient Model

2011 ◽  
Vol 197-198 ◽  
pp. 1452-1459 ◽  
Author(s):  
Li Xiong Gu ◽  
Zhi Fang Liu ◽  
Zhong Yong Xu
Keyword(s):  
Growth Rate ◽  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Threshold Stress ◽  
Inertial Effect ◽  
Threshold Stress Intensity ◽  
Threshold Stress Intensity Factor ◽  
Static Fracture ◽  
Good Agreement

In this paper we first review the inertial effect coefficient model for fatigue crak growth (FCG) under constant amplitude (CA) loading based on static fracture mechanics with thinking about the inertial effect coefficient and its impact to crack tip, and then discuss the relation between threshold stress intensity factor (Kth) and fatigue crak growth rate, which is in good agreement with the result by analysing the relation between dynamical coefficient and fatigue crak growth rate. Comparison of the present analysis with experimental data taken from the literature demonstrates that threshold stress intensity factor (Kth) has a greater impact to the fatigue crack propagation.

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