Automation of Deformation Model Construction of Superplastic Material

Superplastic gas forming is one of the technological processes used for manufacturing complex-shaped products from superplastic materials. When designing this technological process, computer modeling is utilized. The constitutive material model of the superplastic material is required to carry out such a computer simulation. The common experimental method for the construction of such models is the uniaxial tensile test of a flat specimen at a constant strain rate. The standard procedure for interpreting the experimental data of such a test does not consider the specificity of the material flow in the sample. This leads to errors in the construction of the model. This paper proposes to use a correction procedure for the construction of the model. This procedure allows one to take into account the heterogeneity of the material flow in the sample. An application was developed to automate the procedure for constructing a constitutive material model based on experimental data using a correction procedure.