Threshold Stress Intensity Factor (Kth) in Inertial Effect Coefficient Model
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.
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
L. X. Gu et al., "Threshold Stress Intensity Factor (Kth) in Inertial Effect Coefficient Model", Advanced Materials Research, Vols. 197-198, pp. 1452-1459, 2011