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[73770] Artykuł: Calibration of constitutive equations under conditions of large strainsCzasopismo: 14th International Conference Mechatronic Systems and Materials Tom: 2029, Strony: 1-8ISSN: 0094-243X ISBN: 978-0-7354-1751-9 Wydawca: AMER INST PHYSICS, 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA Opublikowano: Pażdziernik 2018 Seria wydawnicza: AIP Conference Proceedings Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper ![]() ![]() |
In the paper the calibration technique of the real stress - logarithmic strains uniaxial curves is proposed, based on the modified Bai-Wierzbicki proposition. The material softening was included before the final failure. Four shapes of specimens were tested, to cover a wide range of stress triaxiality conditions and Lode factors. Tests were performed at temperature +20 degrees C, on S355JR steel with ferrlitic- pearlitic microstructure.