Thermal Fatigue Life Prediction under Temperature Uncertainty for Shot Sleeve of Squeeze Casting Machine

To quantify the influence of temperature uncertainty on thermal fatigue life prediction a shot sleeve in an injection mechanism, analysis method based Kriging surrogate model and Monte Carlo simulation (MCS) was proposed. The training samples were obtained by finite element simulation, response relationships between input variables, such as pouring preheating temperature, target strain stress, constructed model. variables sampled MCS, predicted stress parameters combined with modified universal slope equation to predict sleeve. statistical characteristics obtained. comparative results indicate that considering is more accurate than deterministically value.