ANSYS, deformations, stresses, finite element simulation, thermo-elastoplasticity, contact problem, rivet joint.

A method for creating a rivet connection using nitrogen cooling rivets is considered. A rivet cooled to a cryogenic temperature is placed in a cylindrical hole in a plate located at room temperature. During heating to room temperature, the rivet undergoes thermal expansion and creates a tight fit. Simulation of the thermomechanical behavior of a riveted joint is performed in the ANSYS finite-element software package. The uncoupled problem is solved in the axisymmetric formulation. At the first stage, the temperature distribution in the rivet-plate system is found. The obtained temperature field is used as a parameter in the second stage when deformation problem is solved. The dependence of the properties of materials on temperature is taken into account. The fields of residual deformations and residual stresses in the plate and rivet were obtained.

Potianikhin Dmitrii Andreevich

e-mail: potyanikhin@mail.ru, Cand. Sci. Phys. & Math., Senior Researcher, Institute of Machinery and Metallurgy FEB RAS, Komsomolsk-na-Amure, Russia.

Dubenko Ekaterina Mikhailovna

e-mail: katerina.dubenko@bk.ru,  Master  Student,  Komsomolsk-na-Amure  State  University, Komsomolsk-na-Amure, Russia.