An analysis of the Tvergaard parameters at low initial stress triaxiality for S235JR steel

• Autorzy: Kossakowski P. G.
• Języki publikacji: EN

Abstrakty

EN

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

Słowa kluczowe

EN

Tvergaard parameters; Gurson-Tvergaard-Needleman material model; GTN; S235JR steel

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2014
• Tom: nr 4
• Strony: 100--107
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Kossakowski P. G.

• Department of Strength of Materials and Concrete Structures, Faculty of Civil Engineering and Architecture, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, 25-314 Kielce, Poland

Bibliografia

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