Recent cyclic tests on superelastic Nitinol tubing revealed that material's mechanical property quickly stabilized after several tens of cycle counts. The stabilized material's response is drastically different from the original material reponse. This paper presents the experimental discoveries and Finite Element Analyses (FEA) using ABAQUS to simulate the stabilized material response. The results show that the stabilized complex nonlinear mechanical response of Nitinol can be modeled very effectively and accurately using Abaqus with the new "Direct Cycling" method.
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