TY - JOUR
T1 - A model for predicting the creep-fatigue life under stepped-isothermal fatigue loading
AU - Zhang, Qing
AU - Zuo, Zhengxing
AU - Liu, Jinxiang
PY - 2013
Y1 - 2013
N2 - A model is developed herein for predicting the fatigue life of creep-fatigue damage interaction, which is induced by combined high frequency mechanical loading and low frequency temperature variation, i.e. stepped-isothermal fatigue loading. The model is derived from continuum damage mechanics. In the model, the interaction between creep and fatigue damage is considered to be nonlinear. To validate the proposed model, a cast aluminum alloy is fatigue tested at 200-350 °C and 350-400°C. The results show that good agreement can be achieved between predicted life and experimental data.
AB - A model is developed herein for predicting the fatigue life of creep-fatigue damage interaction, which is induced by combined high frequency mechanical loading and low frequency temperature variation, i.e. stepped-isothermal fatigue loading. The model is derived from continuum damage mechanics. In the model, the interaction between creep and fatigue damage is considered to be nonlinear. To validate the proposed model, a cast aluminum alloy is fatigue tested at 200-350 °C and 350-400°C. The results show that good agreement can be achieved between predicted life and experimental data.
KW - Aluminum alloys
KW - Continuum damage mechanics
KW - Creep-fatigue damage interaction
KW - Life prediction
KW - Stepped-isothermal fatigue
UR - http://www.scopus.com/inward/record.url?scp=84878324611&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2013.04.023
DO - 10.1016/j.ijfatigue.2013.04.023
M3 - Article
AN - SCOPUS:84878324611
SN - 0142-1123
VL - 55
SP - 1
EP - 6
JO - International Journal of Fatigue
JF - International Journal of Fatigue
ER -