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

Povzetek

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.

Ključne besede

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

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 539.3
COBISS: 183728643 Povezava se bo odprla v novem oknu
ISSN: 1879-2162
Št. ogledov: 731
Št. prenosov: 150
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: Prandtlovi operatorji;metoda končnih elementov;termomehansko obremenjevanje;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-16
Zvezek: ǂVol. ǂ267, [article no.] 108953
Čas izdaje: 2024
DOI: 10.1016/j.ijmecsci.2023.108953
ID: 22824572