Fatigue behavior of Nitinol medical devices under multi-axial non-proportional loadsFrancesca Berti, Pei-Jiang Wang, Andrea Spagnoli, Carlo Guala, Francesco Migliavacca, Giancarlo Pennati, Elazer R Edelman and Lorenza PetriniMATEC Web Conf., 300 (2019) 12001DOI: https://doi.org/10.1051/matecconf/201930012001