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[77230] Artykuł: Fracture mechanisms vs. mechanical field parameterCzasopismo: ESIS Newsletter Tom: 62, Strony: 2-25Opublikowano: Lipiec 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 Pełny tekst Keywords: triaxiality  Lode angle  fracture mechanisms  stress-strain curve  |
Experimental and numerical analyses of fracture mechanisms are presented. Tests were performed on five different geometries designed to provide a variety of stress triaxiality levels, Lode factors and critical strains and stresses at the moment of final failure. Specimens were machined from three different materials and tested at three different temperatures. Numerical analyses were performed after careful calibration of the true stress-logarithmic strain uniaxial curves. Calibration was performed according to the modified Bai-Wierzbicki procedure.