Communications - Scientific Letters of the University of Zilina 2011, 13(4):67-71 | DOI: 10.26552/com.C.2011.4.67-71

Effect of the Stress State Triaxiality on the Value of Limit Strain of Micro-Void Development in S235JR Steel - Numerical Analysis

Wiktor Wcislik1
1 Strength of Materials and Concrete Structures, Faculty of Civil and Environmental Engineering, Kielce University of Technology, Kielce, Poland

This paper deals with the numerical analysis of plastic deformation and damage development in S235JR steel in complex stress states. The material Gurson Tvergaard Needleman (GTN) model was applied. The analysis was performed for notched bars subjected to tension. An attempt was made to investigate the effect of stress triaxiality on the value of critical strain of voids growth in the GTN model.

Keywords: ductile fracture, porous metal plasticity, GTN model, numerical analysis

Published: December 31, 2011  Show citation

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Wcislik, W. (2011). Effect of the Stress State Triaxiality on the Value of Limit Strain of Micro-Void Development in S235JR Steel - Numerical Analysis. Communications - Scientific Letters of the University of Zilina, 13(4), 67-71. doi: 10.26552/com.C.2011.4.67-71
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    References

    1. NEIMITZ, A.: Fracture Mechanics (in Polish). Wydawnictwo Naukowe PWN, Warsaw 1998.
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    3. KOSSAKOWSKI, P., TRˇMPCZYNSKI, W.: S235JR Steel Failure Numerical Simulation Taking into Account the Effect of Microstructure Damage. Przeglad Mechaniczny, paper approved for publication.
    4. NOWAK, Z.: Identification Method in Mechanics of Ductile Materials with Damages (in Polish), Habilitation work, Inst. of Fundamental Technological Research, Polish Academy of Sciences (IPPT PAN), Warsaw 2006.
    5. GURSON, A. L. Continuum Theory of Ductile Rapture by Void Nucleation and Growth, Part I - Yield Criteria and Flow Rules for Porous Ductile Materials. J. of Eng. Materials and Technology, 1977, 99, pp. 2-15. Go to original source...

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