[76390] Artykuł: Numerical simulation of material damage for structural steels S235JR and S355J2G3Czasopismo: Advances in Computational Design Tom: 3, Zeszyt: 2, Strony: 133-146ISSN: 2383-8477 Wydawca: TECHNO-PRESS, PO BOX 33, YUSEONG, DAEJEON 305-600, SOUTH KOREA Opublikowano: 2018 Liczba arkuszy wydawniczych: 1.00 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Recenzowana publikacja w języku innym niż polski w zagranicznym czasopiśmie spoza listy Punkty MNiSW: 1 Klasyfikacja Web of Science: Article DOI Web of Science Keywords: steel  static tensile tests  Gurson-Tvergaard-Needleman model  determination of model parameters  numerical simulation  |
The paper discusses numerical analysis of tensile notched specimens with the use of Gurson Tvergaard Needleman (GTN) material model. The analysis concerned S235JR and S355J2G3 steel grades, subjected to medium stress state triaxiality ratio, amounting 0.739. A complete procedure for FEM model preparation was described, paying special attention to the issue of determining material constants in the GTN model. An example of critical void volume fraction (f(c)) experimental determination procedure was presented. Finally, the results of numerical analyses were discussed, indicating the differences between steel grades under investigation.