A stainless steel stent, a minimally invasive medical device with delicate structure manufactured out of a stainless steel tube by laser cutting [1], is usually used to treat arterial stenosis [2]. Along with their increasing popularity in medical field, studies on them have been extended from the typical clinical settings to nonclinical laboratory settings, including the in vivo animal models [3] and in vitro mechanical tests [4]. The stents are usually collapsed to a small profile over a folded balloon catheter. When being used, they are deployed by balloons. After the deflation of the balloon, the stents maintain their expanded shape due to their properties of plastic deformation. In order to study the mechanical properties of the stent in laboratory settings, such as its foreshortening, dogboning, and fatigue properties under multiple inflation-deflation cycles, the stents undergo the...

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