Elasto-viscoplastic material modelling using the multiaxial Prandtl operator approach

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

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.

• Jezik: Angleški jezik
• Ključne besede: Prandtl operators, finite element method, thermomechanical loading
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2024
• Št. strani: 16 str.
• Številčenje: Vol. 267, [article no.] 108953
• PID: 20.500.12556/RUL-154263-b4dc9364-fddf-021d-2303-3fd26ca8270b
• UDK: 539.3
• ISSN pri članku: 1879-2162
• DOI: 10.1016/j.ijmecsci.2023.108953
• COBISS.SI-ID: 183728643
• Datum objave v RUL: 05.02.2024

Gradivo je del revije

• Naslov: International journal of mechanical sciences
• Založnik: Elsevier
• ISSN: 1879-2162
• COBISS.SI-ID: 23008517

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: Prandtlovi operatorji, metoda končnih elementov, termomehansko obremenjevanje

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0182
• Naslov: Razvojna vrednotenja