Marko Nagode (Author), Jernej Klemenc (Author), Simon Oman (Author), Domen Šeruga (Author)

Abstract

The closed-form solution for Prandtl model implemented into the finite element method is presented which enables elasto-viscoplastic simulations of engineering materials. A nonlinear temperature-dependent damper is combined in series with the temperature-dependent spring-slider model for the description of the material stress–strain behaviour. The simulation capabilities allow a separate study of influence due to plastic or viscous properties of the material. Several load cases are studied, including constant temperature relaxation and variable thermomechanical loads. The simulation results are then compared to the Abaqus-implemented material model for elasto-viscoplastic simulations. The models provide similar solutions for simpler load cases whereas higher discrepancies can be observed for more complex load histories since the positions of the nonlinear damper in the models differ.

Keywords

Prandtlovi operatorji;metoda končnih elementov;termomehansko obremenjevanje;Prandtl operators;finite element method;thermomechanical loading;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FS - Faculty of Mechanical Engineering
UDC: 539.3
COBISS: 183728643 Link will open in a new window
ISSN: 1879-2162
Views: 731
Downloads: 150
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Other data

Secondary language: Slovenian
Secondary keywords: Prandtlovi operatorji;metoda končnih elementov;termomehansko obremenjevanje;
Type (COBISS): Article
Pages: str. 1-16
Issue: ǂVol. ǂ267, [article no.] 108953
Chronology: 2024
DOI: 10.1016/j.ijmecsci.2023.108953
ID: 22824572