Non-linear elastic tension–compression asymmetric anisotropic model for fibre-reinforced composite materials

Obid, Štefan (avtor), Halilovič, Miroslav (avtor), Urevc, Janez (avtor), Starman, Bojan (avtor)

We present a novel constitutive model capable of describing non-linear anisotropic fibre-reinforced materials with different responses in tension and compression under a general stress state. The model is based on the original one-dimensional Ramberg–Osgood model, which is generalized to a multiaxial stress state and anisotropic material behaviour under thermodynamic requirements. To account for tension–compression asymmetry under a multiaxial stress state, the model is extended by the use of the stress triaxiality invariant as an indicator of stress state type, e.g. shear, uniaxial or biaxial tension, compression, etc. The model is implemented in ABAQUS/Explicit via the VUMAT subroutine and verified on two material datasets, which are an S2-glass/E773-epoxy and a reinforced polyester composite material. In comparison with other models, the proposed model provides an elegant formulation for the description of all the aforementioned phenomena, resulting in a simple calibration procedure based on uniaxial tensile and compressive tests.

• Jezik: Angleški jezik
• Ključne besede: anisotropic material, constitutive behaviour, finite elements, tension–compression asymmetry, bi-modular materials, stress triaxiality dependency
• 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: 2023
• Št. strani: 13 str.
• Številčenje: Vol. 185, art. 103829
• PID: 20.500.12556/RUL-144403
• UDK: 519.62:620.173:539.383
• ISSN pri članku: 1879-2197
• DOI: 10.1016/j.ijengsci.2023.103829
• COBISS.SI-ID: 142323971
• Datum objave v RUL: 20.02.2023

Gradivo je del revije

• Naslov: International journal of engineering science
• Skrajšan naslov: Int. j. eng. sci.
• Založnik: Elsevier
• ISSN: 1879-2197
• COBISS.SI-ID: 142315779

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: anizotropen material, konstitutivno modeliranje, metoda končnih elementov, natezno-tlačna asimetrija, bimodularni materiali, troosnost napetostnega stanja

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0263
• Naslov: Mehanika v tehniki

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: L2-3172
• Naslov: Razvoj tehničnih smernic za štirislojne zasteklitve