Microvoids Evolution in S235JR Steel Subjected to Multi-Axial Stress State

• Autorzy: Kossakowski P. G. , Trąmpczyński W.
• Języki publikacji: EN

Abstrakty

EN

The article presents the results of the experimental and numerical analysis of microvoids evolution in elements made of S235JR steel under multi-axial stress state. The numerical simulations were based on the modified Gurson-Tvergaard-Needleman (GTN) material model, taking into account the impact of microstructural defects on the material strength. Two approaches were used, assuming a global and local damage of the structure of S235JR steel. In both cases, the evolution of microdamage (voids) and their impact on the strength and failure of the material were analysed. The results of numerical simulations were similar to the results obtained during microstructural examinations.

Słowa kluczowe

EN

Gurson; Gurson-Tvergaard-Needleman (GTN) material model; multi-axial stress states; microvoids; numerical simulations

PL

Gurson; model Gurson-Tvergaard-Needleman; stan naprężenia; symulacje numeryczne

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2012
• Tom: Vol. 60, iss. 4
• Strony: 287--314
• Opis fizyczny: Bibliogr. 25 poz., rys., wykr.

Twórcy

autor

Kossakowski P. G.

autor

Trąmpczyński W.

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

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