Prediction of variable temperature performance of refractory based on multi-scale generalized self-consistent model
In light of the complex nonlinear change of elastic modulus of refractory materials under high temperatures and starting from the material failure caused by the mismatch of two-phase thermal expansion coefficients,a method for predicting the macroscopic nonlinear behavior in the process of temperature change by using the thermoelastic properties of each compo-nent of refractory materials was proposed by means of multi-scale generalized self-consistent model.With the glass-spherical aluminum oxide refractory formed by hot pressing as an example,the elastic modulus in the process of heating/cooling was predicted.The results show that the predicted values are basically consistent with the experimental data.Using this method to predict the thermoelastic properties of two-phase refractories can yield more accurate results.
refractorygeneralized self-consistent modelmesomechanicsvariable temperature performancenumerical analysis
万方数据
维普
