A 3D rheological model and its algorithm for finite element method were established and a FDM/FEM integrated analysis system of thermal stress-strain based on this model was built.

• 建立了铸件凝固过程热应力模拟的三维流变学本构方程及其有限元算法和基于流变学模型的FDM／FEM集成的三维应力应变分析系统。