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[490] Artykuł: An analysis of the Tvergaard parameters at low initial stress triaxiality for S235JR steelCzasopismo: Polish Maritime Research Tom: 21, Zeszyt: 4, Strony: 100-107ISSN: 1233-2585 Wydawca: GDANSK UNIV TECHNOLOGY, FAC OCEAN ENGINEERING & SHIP TECHNOLOGY, UL NARUTOWICZA 11-12, GDANSK, 80-952, POLAND Opublikowano: 2014 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A) Punkty MNiSW: 15 Klasyfikacja Web of Science: Article Pełny tekst DOI Web of Science Keywords: Tvergaard parameters  Gurson-Tvergaard-Needleman material model  GTN  S235JR steel  |
This paper discusses the influence of the Tvergaard parameters, qi, which are basic constants of the Gurson-Tvergaard-Needleman (GTN) material model, on the numerically simulated load-carrying capacity of tensile elements made of S235JR steel. The elements were considered to be under static tension at low initial stress triaxiality σm/σe = 1/3. Two sets of the Tvergaard parameters qi were analyzed: those typical of structural steels and those dependent on material strength properties. The results showed that the Tvergaard parameters, qi, had influence on the load-carrying capacity of tensile elements at low initial stress triaxiality. They affected the strength curves and the changes in the void volume fractions determined for S235JR steel elements