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[23071] Artykuł: Simulation of ductile fracture of S235JR steel using computational cells with microstructurally-based length scalesCzasopismo: Journal of Theoretical and Applied Mechanics Tom: 50, Zeszyt: 2, Strony: 589-607ISSN: 1429-2955 Wydawca: POLISH SOC THEORETICAL & APPLIED MECHANICS, FWARSAW UNIV TECHNOLOGY, FACULTY CIVIL ENGINEERING, AL ARMII LUDOWEJ 15, RM 650, WARSZAWA, 00-637, POLAND Opublikowano: 2012 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 15 Klasyfikacja Web of Science: Article Web of Science Keywords: Gurson-Tvergaard-Needleman model  voids  numerical calculations  S235JR steel  |
The paper presents results of a numerical modelling of ductile fracture and failure of elements made of S235JR steel subjected to static tension. The analysis was performed using the Gurson-Tvergaard-Needleman (GTN) model, which takes into consideration the material structure. The GTN material parameters of S235JR steel were assumed basing on the results of its microstructural and strength properties. The aim of the research was to specify and test the procedure that enables one to perform engineering calculations of tensioned structural elements using the GTN material model. During numerical simulations, the mesh size-effect was analysed, basing on microstructurally-based length scales methods. The results show high sensivity of strength curves in the range from the maximum force to the failure depending on the method and mesh size applied.