Modelování cyklické plasticity aditivně vyrobeného inconelu 718

Abstract

This thesis focuses on the numerical simulation of cyclic plasticity of the Inconel 718 alloy, produced using the selective laser melting method. The work includes low-cycle fatigue tests on solid cylindrical and thin-walled specimens under both deformation- and force-controlled conditions. The experimental data obtained were used to calibrate an advanced material model that combines nonlinear isotropic hardening according to Voce and kinematic hardening based on the models of Chaboche and Marquise. Numerical simulations were performed in the ANSYS APDL environment, utilizing automated macros for efficient processing. The work is further extended to cases of torsional loading and proportional and non-proportional combinations of tension and torsion. The simulation results are then compared with the experimental data.