Stress Intensity Factor of Thermal Fatigue Crack in High Temperature
Stress intensity factor of thermal fatigue crack was calculated within one cycle by using finite element method in consideration of the multi-linear kinematic hardening characteristic of a material. The affection of loading sequence to stress intensity factor was studied under circularly variational temperature by comparing to that in one cycle. The low temperature cycle can not affect the stress intensity factor of latter cycles with high temperature; but high temperature cycle can affect the stress intensity factor of latter cycles with low temperature, and make it be equal to that of the high temperature cycle.
Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen
M. Yan et al., "Stress Intensity Factor of Thermal Fatigue Crack in High Temperature", Advanced Materials Research, Vols. 581-582, pp. 677-680, 2012