Computer modeling of the process of functioning of sleeve made of a material with a shape memory effect

A computer simulation of the functioning of a sleeve made of a material with a shape memory effect in the ANSYS system was carried out, which allowed a deeper study of the processes occurring in the material and affecting the efficiency of technological equipment. For the mathematical description of the behavior of the material with shape memory, a three-dimensional thermomechanical finite element model was used for phase transformations under the action of stresses. Comparative test experiments were carried out to verify the correctness of the parameters of a material with a shape memory effect used in finite element modeling. As a result of comparing the results of natural experiment with the results of a numerical experiment, a refined selection of material parameters with a shape memory effect was conducted. A material model with refined coefficients was applied in modeling the operation of the sleeve. The simulation was performed using static analysis in a flat axisymmetric formulation. As a result of modeling, the values of the components that characterize the stress-strain state of the sleeve from a material with shape memory effect are obtained: radial and tangential stresses, radial and tangential deformations. The resulting model allowed us to estimate the behavior of a sleeve made of a material with a shape memory effect in various conditions. The obtained results allowed to make a conclusion about the compliance of the computer experiment with analytical modeling.